1994 GMC Suburban Owner's Manual
1994 GMC Suburban Manual
1994 GMC Suburban manual content summary:
- 1994 GMC Suburban | Owner's Manual - Page 1
Manual ... ... ... SUBURBAN - 1994 GMC Suburban | Owner's Manual - Page 2
- 1994 GMC Suburban | Owner's Manual - Page 3
1994 GMC Yukon or Suburban and to provide important safety information. There is also a GMC Truck Warranty and Owner Assistance Information booklet. some vehicles, there can be In information manuals from other manufacturerslike body builders or special equipment companies. We urge you to review - 1994 GMC Suburban | Owner's Manual - Page 4
French Language Manual: Aux proprietaires cmndiens: Vous pouvez vous procurer un exemplaire de ce guide en francais chez votre concessionaire ou au DGN Marketing Services Ltd., I500 Bonhill Rd., Mississauga, Ontario L5T 1C7. GMCTRUCK General Motors, GM and the GM Emblem, GMC, Yukon and Suburban are - 1994 GMC Suburban | Owner's Manual - Page 5
Model Reference This manual covers these models: UTILITY WAGON 111 ... - 1994 GMC Suburban | Owner's Manual - Page 6
the road and how to driveunder different conditions. Section 5 - Problems on the Road This section tellsyou what to do if you have a problem while driving, such as a flat tire or engine overheating. Section 6 - Service & Appearance Care Here the manual tells you how to keep your vehicle running - 1994 GMC Suburban | Owner's Manual - Page 7
manual, you'll find that pictures and words work together to explain things quickly. INDEX: A good place to look forwhat you need is the Index in back of the manual. " program. You will also find customer satisfaction phone numbers (including customer satisfaction numbers for the hearing and speech - 1994 GMC Suburban | Owner's Manual - Page 8
Safety Warnings and Symbols You will find anumber of safety cautions in this book. We use a box with gray background and the word CAUTION to be hurt. You will also find a circle a slash through it in this book. This safety with symbol means "Don't,'' "Don't do this," or "Don't let this happen." vi - 1994 GMC Suburban | Owner's Manual - Page 9
Vehicle Damage Warnings Also, in this book you will find these notices: NOTICE: These mean you read other manuals, you might see CAUTION and NOTICE warnings in different colors orin different words. You'll also see warning labels on your vehicle. They use yellow for cautions, blue for notices and - 1994 GMC Suburban | Owner's Manual - Page 10
are important for and your passengers whenever your you vehicle is driven: I Fasten Safety Belts Door LocWUnlock These symbolshave to do with your lights: Master Lighting Swifch Turn Signal Direction Hazard Warning Flasher Headlight High Beam 0 Lights Parking Running Lights Off Vlll ... - 1994 GMC Suburban | Owner's Manual - Page 11
Windshield Washer n 1 Windshield Defroster J Rear Window Washer Rear Window Defogger Ventilating Fan I Hatch Release These symbols are used on warning and indicator lights: I Engine Coolant Temperature Battery Charging System Fuel Engine Oil Pressure BRAKE Brake ANTILOCK 4 Wheel Anti - 1994 GMC Suburban | Owner's Manual - Page 12
Here are some other symbols you may see: I Fuse Hood Release Lighter Horn X - 1994 GMC Suburban | Owner's Manual - Page 13
Safety Belts: They're For Everyone ...1-13 Why Safety Belts Work ...Questions Many People Ask About Safety Belts ...How To Wear and Babies ...Child Restraints ...Larger Children ...Safety Belt Extender ...Checking Your Restraint Systems ...Replacing Safety Belts After a Crash ...1-14 1-17 1-18 - 1994 GMC Suburban | Owner's Manual - Page 14
Fronf Seaf If your vehicle has a manual bucket, split bench, or fullbench seat, you can adjust it with this lever at the front of the seat. Slide thelever at the front the seat toward the outerseat support to unlock of it. Using your body, slide theseat to where you wantit. Then, release the - 1994 GMC Suburban | Owner's Manual - Page 15
you want it. To raise the seat, move the center switch knob up. To lower the seat, move the center switch knobdown. To move the seat forward, move the center switch knob toward the inside of the vehicle. To move the seat rearward, move the center knob toward the outside of the vehicle. You can also - 1994 GMC Suburban | Owner's Manual - Page 16
- 1994 GMC Suburban | Owner's Manual - Page 17
Head Restraints Slide the head restraint up or down so that the top of the restraint is closest to the top of your ears. This position reduces the chance of a neck injury in a crash. Seatback Latches (Reclining Split Bench and Reclining Bucket Seats) The front seatback folds forward to let you - 1994 GMC Suburban | Owner's Manual - Page 18
the lever, located at the side of the seatback, and tilt the back forward toward the front of the vehicle. When you do, the seat latches. After returning the seat to its regular position, try to move the seat with your body, to make sure the seat is locked into place. I A CAUTION: 2. ... .s~ : - 1994 GMC Suburban | Owner's Manual - Page 19
position, then push the whole seat rearward until it latches. After returning the seat to its regular position, try to move the seat with your body, to make sure the seat is locked into place. 1-7 - 1994 GMC Suburban | Owner's Manual - Page 20
lay flat on the floor. To fold the seat, pull on the lever at the front of the seat cushion marked RELEASE. Then, using the handle at the side of the seatback, pull the seatback forward and fold it into the seat cushion. While the seat is in the folded position - 1994 GMC Suburban | Owner's Manual - Page 21
seat on will lay flat the floor. To fold the seat, push down on the lever at 'he outer side of the I I seatcushionand, using the handle mounted on the side If the seat, pull the seat cushionup and fold it forward. After folding the seat cushion fully forward, push down on - 1994 GMC Suburban | Owner's Manual - Page 22
cushion until it latches in position. After returning the seat to the passenger position, pull forward on the seatback and up on the seat cushion handle to make sure the seat is locked in place. Also, pull the safety belt buckles out of the seat cushion pockets, so they will be - 1994 GMC Suburban | Owner's Manual - Page 23
plate end of the belt on the hook at the top of the retractorcover, out of the way. TOremove the seat, fully open rear load doors enter the back the the and of vehicle. Move theseatback release lever, at the right rearof the seat, toward the centerof the vehicle. 1-11 - 1994 GMC Suburban | Owner's Manual - Page 24
. To put the seat back in, hold the seat sideways and put it into the vehicle. Turn the seat to the forward position and set it down, with the latches at the bottom of the seat over the hooks in the floor. Pull up on the center release handle and let the seat - 1994 GMC Suburban | Owner's Manual - Page 25
They're For Everyone This part of the manual tells you how to use safety belts properly. It also tells you some things you should not do with safety belts. This figure lights up as a reminder to buckle up. (See "Safety Belt Reminder Light" in the Index.) It will light - 1994 GMC Suburban | Owner's Manual - Page 26
Canadian provinces, the law says to wear safety belts. Here's why: They work. You never know if you'll be in a crash. If you do the facts are clear. In most crashes buckling up dOes matter ..; a lot! Why Safety Belts Work When you ride in or on anything, you go as fast as it goes. For example, - 1994 GMC Suburban | Owner's Manual - Page 27
Take the simplest "vehicle." Suppose it's just a seat on wheels. 1-15 - 1994 GMC Suburban | Owner's Manual - Page 28
Get it up to speed. Then stop the "vehicle." The rider doesn't stop. The person keeps going until stopped by something. I In a real vehicle, it could be the windshield ... or the instrument panel ... 1-16 - 1994 GMC Suburban | Owner's Manual - Page 29
of them in the future. Butthey are supplementalsystems only - so they work with safety belts, not instead of them. Every air bag system ever offered for sale has required the use of safety belts. Even if you're in a vehicle that has air bags, you still have to buckle up to get the most - 1994 GMC Suburban | Owner's Manual - Page 30
mph (65 km/h). Safety belts are for everyone. Safety Belt Reminder Light When the key is turned to "Run" or "Start," a light will come on for about eight seconds to remind people to fasten . First, you'll want to know which restraint systems your vehicle has. We'll start with the driver position. - 1994 GMC Suburban | Owner's Manual - Page 31
Driver Position This section describesthe driver's restraint system. Lap-Shoulder Belt The driver has a lap-shoulder belt. Here's how to wear it properly. 1-19 - 1994 GMC Suburban | Owner's Manual - Page 32
would be able tounbuckle the safety belt quickly if you ever had to. The lap part the belt should be worn low and snug on the hips, just of touching the thighs shoulder and across the chest. Theseparts of the body are best able to take belt restraining forces. The safetybelt locks if there's a sudden stop - 1994 GMC Suburban | Owner's Manual - Page 33
Q: What's wrong with this? A: The shoulder belt is too loose. It won't give nearly as much protection this way. 1-23 - 1994 GMC Suburban | Owner's Manual - Page 34
Q: What's wrong with this? 1-22 - 1994 GMC Suburban | Owner's Manual - Page 35
Q: What's wrong with this? A: The belt is over an armrest. 1-23 - 1994 GMC Suburban | Owner's Manual - Page 36
be worn over the shoulder at all times. A CAUTION: You can be seriouslyinjured if you wear the shoulder belt under your arm. In a crash, your body would move far forward, too which would increase chance of head and neck injury.Also, the the belt wouldapply too much force to the ribs - 1994 GMC Suburban | Owner's Manual - Page 37
so it can work properly, or ask your dealer fix it. to I To unlatch the belt, just push the button on the buckle. The belt should go back out of the way. Before you close thedoor, be sure the belt is out of the way. If you slam the door on it, you can - 1994 GMC Suburban | Owner's Manual - Page 38
Safety Belt Use During Pregnancy Safety belts work for everyone,including pregnant women. Like all Front Passenger Position The right front passenger's safety belt works the same way as the driver's safety belt. See "Driver Position," earlier this part. in When the lap portion of the belt is - 1994 GMC Suburban | Owner's Manual - Page 39
Center Passenger Position Lap Belt If your vehicle has front and rear bench seats, someone can sit in the center positions. When you sit in a center seating position, you have a lap safetybelt, which has no retractor. To make the belt longer, tilt the latch plate and pull it along the belt. 1-27 - 1994 GMC Suburban | Owner's Manual - Page 40
the belt shorter, pull its free end as shown until the belt is snug. Buckle, position and release it the same way as the lap part of a lap-shoulder belt. If the belt isn't long enough, see "Safety Belt Extender" at the end of this section. Make sure the release button - 1994 GMC Suburban | Owner's Manual - Page 41
on the buckle is positioned so you would be able to unbuckle the safety belt quickly if you ever had to. To make the lap part tight, pull down on the buckle end of the belt as you pull up on the shoulder - 1994 GMC Suburban | Owner's Manual - Page 42
apply force atyour abdomen. This could cause serious or even fatal injuries. The shoulderbelt should go over the shoulder and across the chest. These parts of the body are best able to take belt restraining forces. The safety belt locks if there's a sudden stop ora crash. To unlatch the belt, just - 1994 GMC Suburban | Owner's Manual - Page 43
Children Everyone in a vehicle needs protection! That includes infantsand all children smaller than adult size. I In fact, the law in every state in the United States and in every Canadian province says children to some agemust be restrained while in avehicle. up Smaller Children and Babies 1-31 - 1994 GMC Suburban | Owner's Manual - Page 44
I A CAUTION: Smaller children and babies should always be restrained in a child or infant restraint. The instructions for the restraint will say whether it is the right type and size for your child. A very young child's hip bones so small that a regular - 1994 GMC Suburban | Owner's Manual - Page 45
a use the belt systemin your vehicle, butthe child also has to be secured within the restraint to help reduce the chancepersonal injury. The of instructions that come with the infant or child restraint show you how will to do that. Where to Put the Restraint Accident statistics show that children - 1994 GMC Suburban | Owner's Manual - Page 46
by tilting the latch plate and pulling it along the belt. 4. Run the lap and shoulder portions through or around the restraint. The child restraint instructions will show you how. If the shoulder belt goes in front of the child's face or neck, put it behind the child restraint. 1-34 - 1994 GMC Suburban | Owner's Manual - Page 47
child restraintin different directions to be sure itis secure. To remove the child restraint, unbuckle thevehicle's safety belt and let just ready to it go back all theway. The safety belt will move freely again and be work foran adult or larger childpassenger. 1-35 - 1994 GMC Suburban | Owner's Manual - Page 48
a center seating position, you'll be using the lap belt. See the earlier section about the top strap if the child restraint has one. 1. Make the belt as long as possible by tilting the latch plate and pulling it along the belt. 2. Put the restraint on the seat. Follow the instructions for - 1994 GMC Suburban | Owner's Manual - Page 49
remove the child restraint, just unbuckle the vehicle's safety belt. It will be ready to work for an adult or larger child passenger. Securing a Child Restraint in the Right Front Seat on the seat. Follow the instructions for thechild restraint. 2. Secure the child in the child restraint as the - 1994 GMC Suburban | Owner's Manual - Page 50
Pick up the latch plate, and run the lap and shoulder portions of the vehicle's safety belt through or around the restraint. The child restraint instructions will show you how. If the shoulderbelt goes in front of the child's face orneck, put it behind the child restraint. 4. Buckle the belt. Make - 1994 GMC Suburban | Owner's Manual - Page 51
6. To tighten the belt, feed the lap belt back into the retractor while you push down on the child restraint. 7. Push and pull the child restraint 's safety beltand let the it goback all theway. The safety belt will move freelyagain and be ready to work for an adult or larger childpassenger. 1-39 - 1994 GMC Suburban | Owner's Manual - Page 52
Larger Children Children who have outgrown child restraints should wear the vehicle's safety belts. I If you have the choice, a child should sit next to a window so the child can wear a lap-shoulder belt and get the additional restraint a shoulder belt can provide. Accident statistics show that - 1994 GMC Suburban | Owner's Manual - Page 53
close to the child's face or neck? A: Move the child toward the center of the vehicle, but be sure that the shoulder belt still is on the child's shoulder , so that in a crash the child's upper body would have the restraint that belts provide. If the child is so small that - 1994 GMC Suburban | Owner's Manual - Page 54
Wherever the child sits, the lap portion of the belt should be worn low and snug on the hips, just touching the child's thighs. This applies belt force to the child's pelvic bones in a crash. Safety Belt Extender If the vehicle's safety belt will fasten around you, you should use it. But if a - 1994 GMC Suburban | Owner's Manual - Page 55
Checking Your Restraint Systems Now and then, make sure all your belts, buckles, latch plates, retractors, anchorages and reminder systems are working properly. Look for any loose parts see this label on the belt near the door opening. If belts are cut ordamaged, replace them.Collision damage alsomay mean - 1994 GMC Suburban | Owner's Manual - Page 56
under impact forces. If a belt is torn or frayed,get a new one right away. Before replacing any safety belt, see your dealer for the correct part number. You'll need the model year and model number for your vehicle. The model year is on your title and registration. And you can - 1994 GMC Suburban | Owner's Manual - Page 57
Glass and Rear Doors ...Tailgate ...PanelDoors ...Theft ...New Vehicle Break-In ...Ignitionswitch ...Starting Your Gasoline Engine ...Driving Through Deep Standing Water ...Starting Your Diesel Engine ...Automatic Transmission ...Five-Speed Manual Transmission ...Locking Rear Axle ...Parking Brake - 1994 GMC Suburban | Owner's Manual - Page 58
Over Things That Burn ...2-30 EngineExhaust ...2-31 Running Your Engine While You're Parked ...2-31 ...2-32 Transfercase ...2-33 Front ...2-40 Windshield Washer ...2-41 Cruise Control ...2-42 Headlights and Vehicle Lighting ...2-47 Mirrors ...2-51 SunVisors ...2-53 Turn Signal and Lane Change - 1994 GMC Suburban | Owner's Manual - Page 59
Keys 1 The square-shaped key is for the ignition only. 2-3 - 1994 GMC Suburban | Owner's Manual - Page 60
doors and all other locks. \ \ When a new vehicle is delivered, the dealer removes the plugs from the keys, and gives them to the first owner. Each plug has a code that can help prevent theft. But you can have a lot of trouble getting into your vehicle if you ever lock your keys inside. You may - 1994 GMC Suburban | Owner's Manual - Page 61
Door Locks There are several waysto lock and unlock your vehicle: From the outside:Use your door key. 2-5 - 1994 GMC Suburban | Owner's Manual - Page 62
(Option) Press the bottom or the power door lock switch, marked LOCK, on either front doorto lock all the doors at once. Press the switch marked UNLOCK to unlock all the doors at once. On four-door models, the switch on each rear door works only that door's lock. It won't lock (or unlock) all - 1994 GMC Suburban | Owner's Manual - Page 63
Your Doors andHow They Work Side Doors 1 To open the door from the outside, pull the handle up and pull the door open. To open the door from the inside, pull the lever toward you and push the door open. 2-7 - 1994 GMC Suburban | Owner's Manual - Page 64
other cable connections must pass through the seal between the body and the tailgate glass, tailgate, or rear doors f4!" i!: -7ii: :; $ i.i. i . : in Index. the a If you haveair vents onor under the instrument panel, open them all the way. See "Engine Exhaust" in Index. the Tailgate Glass and - 1994 GMC Suburban | Owner's Manual - Page 65
it toward you. After closing therear glass, pull up on its handle to make sure is locked. it Panel Doors To open the rear panel doors on the wagon model, you must open the right door first. If the dooris locked, insertyour door key in the lock and turn it to the left to unlock - 1994 GMC Suburban | Owner's Manual - Page 66
during normal use. To fully open the either rear door, you must release the check strap. First, open the door part way until the white mark on the check strap is fully outside the door edge. If the end of the strap catches the pin on the door, the door is open too far. Then, hold the strap - 1994 GMC Suburban | Owner's Manual - Page 67
Park in a lighted spot, close in a storage area or console. 0 0 0 Lock the console. Lock all the doors gkcept the driver's. Then take the door key with you. New Vehicle first miles (322 km) or 200 so. During this time your brake linings aren't yet broken new in. Hard stops withnew linings can mean - 1994 GMC Suburban | Owner's Manual - Page 68
key to start your vehicle. The square key lets you turn the ignition switch to fivedifferent positions: 1. OFF 2 2. RUN 3. START 5 4. ACC 5. LOCK ACC (Accessory): ACC lets you use things like the radio and the windshield wipers when the engine is off. To get into ACC, push in the key and turn - 1994 GMC Suburban | Owner's Manual - Page 69
. On automatic transmission vehicles, turn the key to LOCK and pull it straight out. Starting Your Gasoline Engine If you have a diesel engine, see "Starting Your Diesel Engine" in the Index. Engines start differently. The 8th digit of your Vehicle Identification Number (VIN) shows the code letter - 1994 GMC Suburban | Owner's Manual - Page 70
is stopped. Manual Transmission: Hold the clutch pedal to the floor, then shift your gear selector to neutral while starting the engine. Your vehicle won't start if the clutch pedal is not all the way down - that's a safety feature. To start your 5.7 Liter (Cock K ) or 7.4 Liter (Code N ) V8 engine - 1994 GMC Suburban | Owner's Manual - Page 71
go the key and the acceleratorpedal. of NOTICE: Your engine is designed work with the electronics in your to vehicle. If you add electrical parts oraccessories, you could change the way the fuel injection system operates. Before adding electrical equipment, check withyour dealer. If you don't, your - 1994 GMC Suburban | Owner's Manual - Page 72
in a heavy snowstorm or in swirling snow with a diesel engine, snow can get into the air intake system. If you keep driving in these conditions the air cleaner may get plugged, causing black smoke and loss of power. In an emergency, if the air cleaner gets plugged with snow, you can remove the - 1994 GMC Suburban | Owner's Manual - Page 73
to cool, then try the same steps again. If you're trying to startyour engine afteryou've run out of fuel, follow the steps in "Running Outof Fuel" (see "Diesel Fuel Requirements and Fuel System'' in the Index). When your engine is cold, let it run for a few minutes before you move your vehicle - 1994 GMC Suburban | Owner's Manual - Page 74
coolant heater, besure to store the cord in the manner it was, to help keep away from moving engine it parts . If you don't, it could be torn and damaged. How long should you keep the coolant harm either the coolant heater or the vehicle to leave the coolant heater plugged in longer - 1994 GMC Suburban | Owner's Manual - Page 75
you can for a starting system check. If the light comes on and then goes off and you know your batteries are charged, but your engine still won't start, your vehicle needs service. If the light does not come on when the engine is cold, your vehicle needs service. If your batteries don't have enough - 1994 GMC Suburban | Owner's Manual - Page 76
economy during engine and warm-up. Usually, the coolant heater should be plugged in a minimum of four hours prior to starting your vehicle. To use the coolant heater: 1. Turn off the engine moving engine parts. you it If don't, it could damaged. be How long should you keep the coolant heater - 1994 GMC Suburban | Owner's Manual - Page 77
Automatic Transmission There are several different positions for your shift lever. 0 P (Park) This locks your rear wheels. It's the best position to use when you start your engine because your vehicle can't move easily. 2-21 - 1994 GMC Suburban | Owner's Manual - Page 78
transmission. Shift to only after your "R" vehicle is stopped. To rock your vehicle back and forth to get out of snow, ice or sand without damaging your transmission transmission caused shifting outof "P9' by (Park) or"N" (Neutral) with the engine racing isn't covered by your warranty. @ (Automatic - 1994 GMC Suburban | Owner's Manual - Page 79
) when operating the vehicle under any of these conditions. 0 D (Third Gear) This is like economy. You can use "2" on hills. It can help control your speed as you go down steep mountain roads, but then you would also want to use your brakes off and on. If you manually select "2", the transmission - 1994 GMC Suburban | Owner's Manual - Page 80
and the brake pedal, and shift to Neutral. R (Reverse)-To back up, first press down the clutch pedal. Wait 3-5 seconds for the internal parts to stop moving could is damage your transmission. Also, use Reverse, along with the parking brake, when turning off your engine and parking your vehicle. - 1994 GMC Suburban | Owner's Manual - Page 81
Shiff Light If you have a manual transmission, you may have a SHIFT light. This light will show you when to shift to the next higher gear for best fuel economy. When this light comes on, you can shift to the next higher gear if weather, road and traffic conditions let you. For the best fuel economy - 1994 GMC Suburban | Owner's Manual - Page 82
locking featurewill allow the wheel with traction to move the vehicle. Parking Brake To set the parking brake: Hold the regular brake pedal down with your right foot. Push down the parking brake pedal with your left foot. If the ignition is on, the brake system warning light will come on. 2-26 - 1994 GMC Suburban | Owner's Manual - Page 83
If the ignition is on when the parking brake is released, the brake system warning light will go off. NOTICE: Driving with the parking brake on can cause your rear brakes to overheat. You may have to replace them, and you could also damage other parts your vehicle. of If you are towing a trailer - 1994 GMC Suburban | Owner's Manual - Page 84
Shifting Into "P" (Park) (Automatic Transmission Models Only) Steering ColumnShift Lever 1. Hold the brake pedal down with your right foot and set the parking brake. 2. Move the shift lever into "P" (Park) position like this: Pull the lever toward you. 0 Move the lever up as far as it will go. - 1994 GMC Suburban | Owner's Manual - Page 85
Engine Running (Automatic Transmission ModelsOnly) If you have to leave your vehicle with the engine running,be sure your vehicle is in " P ' (Park) and your parking brake Automatic Transmission) If you are parking on a hill and you don't shift your transmission into "P" (Park) properly, the weight - 1994 GMC Suburban | Owner's Manual - Page 86
get outof your vehicle, put your manual transmission in "R" (Reverse), turn off the engine, and firmly apply the parking brake . If you have four-wheel A CAUTION: Things that can burn could touch hot exhaust parts your under vehicle and ignite. Don't park over papers, leaves, dry grass or other - 1994 GMC Suburban | Owner's Manual - Page 87
Engine Exhaust Running Your Engine While You're Parked (Automatic Transmission) '2-31 - 1994 GMC Suburban | Owner's Manual - Page 88
with it's operation. Read the part that follows before using four-wheel drive. You should use 2H for most normal driving conditions. Rear-wheel antilock brakes do not work when you shift into four-wheel drive. Your rcgular brakes will still work. When you shift back into two-wheel drive, your rear - 1994 GMC Suburban | Owner's Manual - Page 89
diagram will light up when you shift into four-wheel drive. L , I Some delay between shifting and the indicator's lighting is normal. If the indicator light does not light up, or if the front axle light does not go out after you shift out of four-wheel drive, have your dealer check your system - 1994 GMC Suburban | Owner's Manual - Page 90
switch up to brighten, or down to dim, your transfer case indicator light about 1-3 mph (2-5 km/h) and shift your transmission into neutral. 0 Shift the transfer case shift 4H or 4L may reduce fuel economy. Also, driving in four-wheel The front axlelocks and unlocks automatically when you shift the - 1994 GMC Suburban | Owner's Manual - Page 91
To open your manual windows, turn the hand crank on each door to raise or lower your side door windows. If you have the optional power windows, the controls are on each o f the side doors. The driver's door has a switch for the passenger windows as well. Your power windows will work when the - 1994 GMC Suburban | Owner's Manual - Page 92
the button to the right until you hear the latch release. f a Then, lift the window up to open. If you have an automatic transmission, your shift lever must be in "P" (Park) or "N"(Neutra1) for the release to work. With a manual transmission, you must apply the parking brake for the release to - 1994 GMC Suburban | Owner's Manual - Page 93
Horn To sound the horn, press thepad in the center of the steering wheel. The pad has a horn symbol on it. Tilt Wheel (Option) A tilt steering wheel allows you to adjust the steering wheel before - 1994 GMC Suburban | Owner's Manual - Page 94
Multifunction Lever The lever on the left side of the steering column includes your: Turn Signal and Lane Change Indicator 0 Headlight High-Low Beam & Passing Signal Windshield Wipers Windshield Washer Cruise Control (Option) 2-38 - 1994 GMC Suburban | Owner's Manual - Page 95
move the lever all the way up or down. When the turn is finished, the leverwill return automatically. I instrument panel will flash in the direction of the turn or lane change. A green arrow all when you signal a turn, check for burned-out bulbs and a blown fuse (see "Fuses" in the Index). 2-39 - 1994 GMC Suburban | Owner's Manual - Page 96
high or high to low, pull the turn signal lever all the way toward you. Then release it. When the high beams are on, this blue light on the instrument panel also will be on. J Windshield Wipers You control the windshield wipers by turning the band with the wiper symbol on it - 1994 GMC Suburban | Owner's Manual - Page 97
can set the wiper speed for a long or short delay between wipes. This can be very useful in light rain or snow. Turn the band to choose the delay time. The closer to LO, the shorter the delay your vision. You could hit another vehicle or go off the road. Check your washer fluid level often. 2-41 - 1994 GMC Suburban | Owner's Manual - Page 98
When using concentrated washer fluid, follow the manufacturer's instructions for adding water. Don't mix water with to freeze and damage your washer fluid tank and other parts the washer system. of Also, water doesn't clean aswell as washer fluid work at speeds below about 25 mph (40 k d h ) . 2-42 - 1994 GMC Suburban | Owner's Manual - Page 99
When you apply your brakes, the Cruise Control shuts off. A CAUTION: 0 Cruise Control can be dangerous lose control. Don't use Cruise Control on slippery roads. To Set Cruise Control 0 Move the Cruise Control switch to ON. Get up to the speed you want. a Push in the set button at the end of - 1994 GMC Suburban | Owner's Manual - Page 100
/Accelerate) for about half a second. You'll go right back up to your chosen speed and stay there. Remember, if you hold the switch at R/A longer than half a second, the vehicle will keep going faster until you release the switch or apply the brake. You could be startled and even lose control. So - 1994 GMC Suburban | Owner's Manual - Page 101
ON to WA. Hold it there until you get up to the speed you want, and then release the switch. To increase your speed in very small amounts, move the switch to WA. Each time you do this, your vehicle will go about 1 mph (1.6 k d h ) faster. To Reduce Speed While Using Cruise Control - 1994 GMC Suburban | Owner's Manual - Page 102
this to be too much trouble and don't use Cruise Control on steep hills. To Get Outof Cruise Control There are two ways to turn off the Cruise Control: Step lightly on the brake pedal or push the clutch pedal, if you have a manual transmission OR; 0 move the Cruise switch to OFF. To Erase Speed - 1994 GMC Suburban | Owner's Manual - Page 103
turns on the interior lights. You can switch your headlights from high to low beam by pulling on the turn signal/high beam lever. A circuit breakerprotects your headlights. If you have an electrical overload, your headlights will flicker on and off. Have your headlight wiring checked right away if - 1994 GMC Suburban | Owner's Manual - Page 104
in daylight when: The ignition is on 0 0 The headlight switch is off, and The parking brake is released. When you turn on your headlights, the DRL will switch off and the exterior lights will come on. When you turn off the headlights, the exterior lights will go out and the high beams will change - 1994 GMC Suburban | Owner's Manual - Page 105
come onwhen you open the doors or tailgate. can YOU also turn the dome lights by turning the interior light dimmer dial they on all way up until it clicks. You can use the dome lamp switch, located below the headlight switch, to set the dome lamps to come on automatically or remain off. To turn - 1994 GMC Suburban | Owner's Manual - Page 106
you want. To turn the light on, press the button next to the light with the master lighting switch symbol on it. Press the button again to turn the light off. Underhood Reel Light If you have an underhood reel light, it is located inside the engine compartment on the passenger side fender - 1994 GMC Suburban | Owner's Manual - Page 107
When you are done using the light, reel the cord back into the housing by tuming the handle. hook the Then, slide the light into the holder. Press PUSH on the lever to light into the holder. Mirrors lnside Mirror Push orpull the tab under the mirror to reduce glare from headlights behindyou after - 1994 GMC Suburban | Owner's Manual - Page 108
you have electric mirrors, they can beadjusted to point where you want from insidethe vehicle. I Select the mirror you d want to move by moving the center of the switch, located on the driver's door armrest, to R (right) or L (left). Then, adjust the mirror angle by pressing the outer arrows on the - 1994 GMC Suburban | Owner's Manual - Page 109
Convex Outside Mirror Your right side mirror may be convex. A convex mirror's surface is curvedso you can see more from the driver's seat. Sun Visors I To block out glare, can swing down the you visors. You can also swing them out to help block glare at the front side windows. and Your visor may - 1994 GMC Suburban | Owner's Manual - Page 110
out for extra glare coverage at the front orside. Some visors have mirrors with lights. If the mirror has lights, they will come on when you lift the mirror cover. Rear Window Wiper and Washer The rearwindow wiperlwasher switch is on your instrument panel, to the right of the steering wheel. 2-54 - 1994 GMC Suburban | Owner's Manual - Page 111
DELAY to the center of the rear If you can wash your windshield, but not your rear window, check the fluid level. Cigarette Lighter/Ashtrays The front ashtray is located ashtray door to open it. To use the cigarettelighter, push it in all the way, and let go. When it's ready, it will pop back by - 1994 GMC Suburban | Owner's Manual - Page 112
To use a rear ashtray, pull at the top of the ashtray door to flipthe door open. Storage Compartments Your vehicle has a variety of storage compartments provided for your convenience. Glove Box To open your glove box, press the button down and pull the ' door open. 2-56 - 1994 GMC Suburban | Owner's Manual - Page 113
are provided for your convenience. Center Floor Console Your vehicle may have a console compartment between the bucket seats. To open it, just squeeze the buttons on both sides of the keyhole, and pull up. Use your round key to lock this compartment. Your console also includes ahandy place to - 1994 GMC Suburban | Owner's Manual - Page 114
Your console alsohas a cupholder that slides out, for back the seat passengers to use. Instrument Panel CupHolder If your vehicle has a full or split bench seat, you may have a cup holder attached to the instrument panel. To use the cup holder, pull the handle and slide the cup holder tray out - 1994 GMC Suburban | Owner's Manual - Page 115
Center Overhead Console Your vehicle may have an overhead console. It has storage compartments inside it. Garage Door Opener Compartment If you have a garage door opener, the frontoverhead compartment can be used to conveniently store the opener. To install the garage door opener, first open the - 1994 GMC Suburban | Owner's Manual - Page 116
Center thegarage door opener activation button over the console door button, and press the opener firmly into place. Add one peg at atime until the PUSH button on the compartment door operates the garage door opener, with the compartment door closed, when you push the button marked PUSH. 2-60 - 1994 GMC Suburban | Owner's Manual - Page 117
make sure the garage dooropener operates properly. With the garage door opener positioned properly and the right number of pegs in properly. Sunglasses Compartment The center overhead compartment can be used to conveniently store your sunglasses. To open the center compartment, press the release - 1994 GMC Suburban | Owner's Manual - Page 118
Place your sunglasses in the compartment door with the lenses facing out. f Rear Compartment The rear compartment can be used to store a small item, like a book. To open the rear compartment, press the release button located at the rear of the compartment door. 2-62 - 1994 GMC Suburban | Owner's Manual - Page 119
Other Storage Compartments Your vehicle features anumber of storage compartments for convenient storage of often used items Some vehicles have storage areas in the Some modelshave a storage pocket on each of the front doors. You can use the pocket to store a variety of small items. 2-63 - 1994 GMC Suburban | Owner's Manual - Page 120
3. Air Vents 4. Multifunction Lever 5. Tilt Lever 6. Instrument Cluster 7. Gearshift Lever 8. Audio System 9. Comfort Control System 10. Glove Box 11. Audio System 12. Ashtray 13. Rear Window Defogger Switch or Rear Heater Switch 15. Dome Light Override Switch 16. Fuse Panel 17. Parking Brake - 1994 GMC Suburban | Owner's Manual - Page 121
will show silver lines between the numbers if someone tries to turn it back. You may wonder what happens if your vehicle needs a new odometer installed. Laws vary as to the procedure that must be followed, so check with your state orprovincial vehicle registration office. But generally, if the new - 1994 GMC Suburban | Owner's Manual - Page 122
lights work together to let you know when there's a problem with your vehicle. When one of the warning lights comes on and stays on when you are driving, or when one of the gages shows there may be a problem, check the section that tells you what to do about it. Please follow the manual's advice - 1994 GMC Suburban | Owner's Manual - Page 123
is divided into two parts. If one part isn't working, the other part can still work and stop you. For good braking, though, you need both parts working well. If the warning light comes on, there couldbe a brake problem. Have your brake system inspected right away. This light should come on as you - 1994 GMC Suburban | Owner's Manual - Page 124
start your engine and may stay on for several seconds. That's normal. If the light doesn't come on, have it fixed so it will be ready to warn you if there is a problem. If the light stays on, or comes on when you're driving,your vehicle needs service. If the regular brake system warning light isn - 1994 GMC Suburban | Owner's Manual - Page 125
not running, as a check to show you its working. If it does not come on at all, have it fixed right away. If the light stays on after the engine starts or comes on while you are driving, the computer is indicating that you have a problem. You should take your vehicle in for service soon. Glow Plugs - 1994 GMC Suburban | Owner's Manual - Page 126
problem with the alternator drive belt, or some other charging system problem. Have it checked right away. Driving while this light is on could drain your battery. If you must drive a short distance with this light on, it helps to turn off all your accessories, such as the radio and air conditioner - 1994 GMC Suburban | Owner's Manual - Page 127
are driving, the computer is indicating that you have a problem. You should take your vehicle in for service soon. NOTICE: If you keep driving your vehicle with this light after a while on, the emission controls won't work well, your fuel economy as won't be as good, and your engine may not run as - 1994 GMC Suburban | Owner's Manual - Page 128
will come on briefly when you are starting the engine. If the light comes on and stays on while you are driving, it could indicate a problem with your vehicle. It could be a problem with your oil pressure, coolant temperature, or some other problem. Check your various gages to see if they are in - 1994 GMC Suburban | Owner's Manual - Page 129
Headlight High Beam lndicator Light The blue Headlight High Beam Indicator light is located near the middle left edge of earlier in this section. Turn Signal and Lane Change Indicator Lights The greenTurn Signal and Lane Change Indicator lights are located at the middle left and right edges of the - 1994 GMC Suburban | Owner's Manual - Page 130
Gages Fuel Gage Standard Cluster -Gas Standard Cluster -Diesel DIESEL FUEL ONLY Tachometer Cluster Tachometer -Gas Cluster -Diesel The fuel gage, when the ignition is on, tells you about how much fuel you have left in your tank. The gage will first indicate - 1994 GMC Suburban | Owner's Manual - Page 131
doesn't go back to empty when engine coolant has overheated. If you have been operating your vehicle under normal operating conditions,you should pull off the road, stop your vehicle, and turn off the engine as soon as possible. Hot Coolant Can Burn You Badly! In "Problems on the Road," this manual - 1994 GMC Suburban | Owner's Manual - Page 132
Oil Pressure Gage Standard Cluster -Gas I Standard Cluster -Diesel 30 40 Tachometer Cluster -Gas Tachometer Cluster -Diesel The oil pressure gage shows the engine oil pressure in psi (pounds per square inch) when the engine is running. Canadian vehicles indicate pressure in kPa (kilopascals). - 1994 GMC Suburban | Owner's Manual - Page 133
burned. Check your oil as soon as possible and have your vehicle serviced. NOTICE: Damage to your engine from neglected oil problems can this gage shows your battery's state of charge in DC volts. When the engine is running, the gage shows the condition of the charging system. Readings between the - 1994 GMC Suburban | Owner's Manual - Page 134
If you must drive, turn off all unnecessary accessories, and have the vehicle serviced as soon as possible. Center High Mount Stop Lamp (CHMSL) Your vehicle has a Center High Mount Stoplamp (CHMSL) located above the tailgate glass orabove the rear load doors. If items areloaded on the roof of the - 1994 GMC Suburban | Owner's Manual - Page 135
To prevent damage or lossof cargo as you're driving, check now and then to make sure the luggage carrier cargo area over the rear wheels (behind the rear side door wagon models). If on you need to, cuta piece rail If supports. Tie the load to the cross rails or the side rail supports. the cross Use rails - 1994 GMC Suburban | Owner's Manual - Page 136
to the cross rails and the side rails or side rail supports. Also tie the load to the bumpers. Do not tie the load so tightly that the cross along the rear frame crossmember. The harness has a 30 amp. in-line fused battery feed wire and n o connector, and should be wired by a qualified electrical - 1994 GMC Suburban | Owner's Manual - Page 137
may be equipped with a rear step pad at the center the bumper. Use this pad to improve footing of when you are steppingon the bumper step. If you will be using the bumper to tow a trailer, you must remove the center cutout circleto install the trailer ball. You must also remove both outer cutoutsto - 1994 GMC Suburban | Owner's Manual - Page 138
Notes - 1994 GMC Suburban | Owner's Manual - Page 139
to Symbols" in the Introduction. Comfort Controls ...Flow-Through Ventilation System ...Heating System ...3-2 3-2 3-4 Electronic Heating/Air ConditioningSysteln ...3-5 Rear Air Conditioning and Heating Systems (Wagon Models) ...3-8 Rear Window Defogger ...Audiosystems ...FMStereo ...3-1 1 3-12 3-12 - 1994 GMC Suburban | Owner's Manual - Page 140
the air conditioning fan is running, unless your optional air conditioner is in the MAX mode. For more information see "MAX Button" in this section. Ventilation Tips 0 Keep the hood and front air inlet free of ice, snow, or any other obstruction (such as leaves). The heater and defroster will work - 1994 GMC Suburban | Owner's Manual - Page 141
If your vehicle does not have air conditioning,there are air vents below the instrument panel. Use the handles below your steering wheel, with the vent symbols on them, to open and close the vents. If your vehicle has air conditioning, you will find airvents in the center andon the sides of your - 1994 GMC Suburban | Owner's Manual - Page 142
you increase the engine speed, your heater should blow out warmer air. If it doesn't, your coolant level may be low. See "EngineCoolant" in the Index to find out how to check your coolant level. Heating System (Without Air Conditioning) If your vehicle does not have air conditioning, this is what - 1994 GMC Suburban | Owner's Manual - Page 143
comes out at the vents on your instrument panel and at your front side windows. 0 Heater (Center):Air comes out near the floor. This setting, along with a heat setting, is best for cold weather. Defrost (Right):This setting operatesthe defroster. Air comes out near the bottom of the windshield and - 1994 GMC Suburban | Owner's Manual - Page 144
you first turn on your vehicle's air conditioning,open the windows to clear the vehicle of hot air. Using the MAX button can also help. See "MAX Button" in this section for more information. Function Display Your system has a lighted display showing each system when it is operating. During normal - 1994 GMC Suburban | Owner's Manual - Page 145
help keep dust out of your vehicle. When MAX is selected,REC will light on your display. If your air conditioner develops high system pressure, it will automatically go into the MAX mode and REC will light on your display. The A/C system will remain in the MAX mode, even if you press the MAX button - 1994 GMC Suburban | Owner's Manual - Page 146
, or one of the BLEND buttons for the system to come back on. Rear Air Conditioning and Heating Systems (Wagon Models) If your vehicle has either orboth of these systems, you can increase and decrease the air flow at the rear vents. Depending on the system you have and the setting selected, you can - 1994 GMC Suburban | Owner's Manual - Page 147
and decrease the air flow. Rear Heater (Without Rear Air Conditioning) If you have a rear heater (without rear air conditioning),the control switch is located on the instrument panel. To increase and decrease the flow of heated air to the rear floor vents, move the switch with the fan symbol - 1994 GMC Suburban | Owner's Manual - Page 148
to the left (blue) side. To regulate the air flow location, adjust the center knob on the control panel. Turn the knob toward the left for floor vent air flow or toward the right for headliner vent air flow. Generally, the upper vents are used for air conditioning and the floor vents for heating - 1994 GMC Suburban | Owner's Manual - Page 149
REAR DEFOG on your instrument panel, just below the heater system. Press the right side of the switch, with the defog symbol on it, until the light in the switch comes on. then release it. The rear window defogger will only work if the ignition switch is turned to RUN. You can turn the defogger off - 1994 GMC Suburban | Owner's Manual - Page 150
your Delco@system can do and how to operate all its controls, to be sure you're getting the most out of the advanced engineering that went reducing the treble to lessen the noise. AM Stereo This means the Delco@ system can receive C-QUAM@ stereo broadcasts. Many AM stations around the country use - 1994 GMC Suburban | Owner's Manual - Page 151
with the radio or other operation of your vehicle's engine, Delco@ systems, and even damage them. And, your vehicle's systems may interfere with the operation of sound equipment that has been added improperly. So, before adding sound equipment, check withyour dealer and be sure tocheck Federal rules - 1994 GMC Suburban | Owner's Manual - Page 152
. Whenever you press that button, the preset station will return. 0 How to Operate Your AM-FM Stereo Audio System and Cassette Deck To Play The Radio Press the amber PWR button to switch the radio on and off. RCL Button When the ignition is off, press the RCL button to display the - 1994 GMC Suburban | Owner's Manual - Page 153
the scan mode. Press SCAN again to cancel the scan mode and hold the current station. AM-FM Button Press the AM-FM button to switch between AM and FM. VOL Button The VOL button controls the volume. Pressing VOL "+" increases volume; VOL "-" decreases volume. TUNE Button 'To tune in radiostations - 1994 GMC Suburban | Owner's Manual - Page 154
To set the clock, just: 0 Press the SET button. The word SET will light up in the electronic display. Within 5 seconds, press and hold the SEEK button . Cassette Deck ... "... If you have a cassette deck,it is built to work best with tapes that are 30 to 45 minutes long on each side. Tapes longer - 1994 GMC Suburban | Owner's Manual - Page 155
system on. The radio will play until a cassette is pushed into the cassette entry door the other, press the PROG button. Observe the lighted arrows to determine which side of the tape is "2" (or "B") had been selected. The player will automatically switch to the other side of the tape when the first - 1994 GMC Suburban | Owner's Manual - Page 156
How to Operate Your AM-FM Stereo Audio System and Cassette Deck with Equalizer To Play The Radio Press the amber PWR button to switch the radio on and off. RCL Button When the ignition is off, press hold the current station. AM-FM Button Press the AM-FM button to switch between AM and FM. 3-18 - 1994 GMC Suburban | Owner's Manual - Page 157
QUAM@stereo broadcasts. Many AM stations around the country use C-QUAM@to produce stereo, though some do not. If your Delco@ system can get C-QUAM@ signals, your "STEREO" light will come on when you are receiving stereo. (C-QUAM@ is a registeredtrademark of Motorola Inc.). VOL Button The VOL button - 1994 GMC Suburban | Owner's Manual - Page 158
work well in this player. Press the PWR button on the radio to turn the system on. The radio will play until a cassette is pushed into the cassette entry door , mid-range and treble frequencies to your individual taste. The unit has five separate adjustable frequency ranges. To emphasize a frequency, - 1994 GMC Suburban | Owner's Manual - Page 159
indicate that side "2" (or "B") had been selected. The player will automatically switch to the other sideof the tape when the first side ends. EJECT Button tape. REV Button To rapidly rewind the tape, press the REV button. The light in the button will be l i t and the tape will rapidly rewind until - 1994 GMC Suburban | Owner's Manual - Page 160
aresubject to wear and the sound quality may degrade over time. Always make sure that the cassettetape is in good condition before you have your tape player serviced. Fixed Mast Antenna The fixedmast antenna can withstand most car washes without being damaged. If the mast should ever become - 1994 GMC Suburban | Owner's Manual - Page 161
about driving on different kinds of roads and in varying weather conditions. We've also included many other useful tips on dsiving . Defensive Driving ...DrunkenDriving ...Control of a Vehicle Braking ...4-5 4-7 Steering ...Steering Tips ...4-7 Off-Road Recovery ...Passing ...Loss of Control - 1994 GMC Suburban | Owner's Manual - Page 162
never know when the vehicle in front of you is going to brake or turn suddenly. Drunken Driving Death and injury associated with drinking and on each person and situation, here is some general information on the problem. The Blood Alcohol Content (BAC) of someone who is drinking depends upon four - 1994 GMC Suburban | Owner's Manual - Page 163
According to the American Medical Association, a 180-pound (82 kg) person who drinks three 12-ounce (355 ml) bottles of beer in an hour will end up with a BACof about 0.06 percent. Theperson would reach the same BAC by drinking three4-ounce (120 ml) glasses of wine or three mixed whiskey, gin or - 1994 GMC Suburban | Owner's Manual - Page 164
level of 0.15 percent, the chances are twenty-five times greater! And, the body takes about an hour to rid itself of the alcohol in one drink. No amount go. They are the brakes, the steering and the accelerator. All three systems have to do their work at the places where the tires meet the road. 4-4 - 1994 GMC Suburban | Owner's Manual - Page 165
another. Age, physical condition, alertness, coordination, eyesight and all play a part.So do alcohol, condition of your brakes. Avoid needless heavy braking. Some people drive in spurts -heavy acceleration followedby heavy braking -rather than keeping pacewith traffic. This is a mistake. brakes - 1994 GMC Suburban | Owner's Manual - Page 166
slam on the brakes. Here's what happens with ABS. A computer senses that wheels are slowing down. If one of the wheels is about to stop rolling, the computer will separately work the brakes at each front wheel and at the rear wheels. The anti-lock system can change the brake pressure faster than - 1994 GMC Suburban | Owner's Manual - Page 167
brakes. Just hold the brake pedal down and let anti-lock work for you. You may feel the brakes vibrate, or you may notice some noise, but this is normal. Braking in Emergencies Use your anti-lock braking system you can get in a curve depends on the condition of your tires and the road surface, the - 1994 GMC Suburban | Owner's Manual - Page 168
course, the posted speeds arebased on good weather and road conditions. Under less favorable conditions you'll want to go slower. If you need to reduce cars and stops right i n front of you. You can avoid these problems by braking - if you can stop in time. But sometimes you can't; there isn't - 1994 GMC Suburban | Owner's Manual - Page 169
a vehicle about topass another on a two-lane highway waits for just the right moment, accelerates, moves around the vehicle ahead, then goes back into the right lane again.A simple maneuver? Not necessarily! Passing another vehicle a two-lane highway is a on potentially dangerous move, since the - 1994 GMC Suburban | Owner's Manual - Page 170
get ahead of you. Perhaps you can ease a little to the right. 0 0 0 0 0 0 Loss of Control Let's review what driving experts say about what happens when the three control systems (brakes, steeringand acceleration) don't have enough friction where the tires meet the road to do what the driver - 1994 GMC Suburban | Owner's Manual - Page 171
system (ABS) helm avoid only the braking skid. Driving Guidelines This multipurpose passenger vehicle is defined as a utility vehicle in Consumer Information Regulations issued by the National Highway Traffic Safety Administration (NHTSA) of the United States Department of Transportation. Utility - 1994 GMC Suburban | Owner's Manual - Page 172
off-road guide is for vehicles that have four-wheel drive. Also, see "Anti-lock Brakes" in the you've left the great North American road system behind. Traffic lanes aren't marked. Curves aren service work done. Be sure you read all the information about your four-wheel drive vehicle in this manual - 1994 GMC Suburban | Owner's Manual - Page 173
other important information in this manual. See "Vehicle Loading," your vehicle have a winch? If so, be sure to read the winch instructions. In a remote area, a winch can be handy if you get stuck. tire or engine sounds. With your arms, hands, feet,and body you'll need to respond to vibrations and - 1994 GMC Suburban | Owner's Manual - Page 174
when you drive over obstacles. 0 you'll need more distance for braking, especially since you're on an unpaved surface. Scanning the Terrain Off and its many different features. Here are some things toconsider. Surface Conditions. Off-roading can take you over hard-packed dirt, gravel, rocks - 1994 GMC Suburban | Owner's Manual - Page 175
, it's especially important to avoid sudden acceleration, sudden turns, or sudden braking. In a way, off-road driving requires a different kind of alertness from and highways. There are no road signs, posted speed limits or signal lights. You have to use your own good judgment about what is safe and - 1994 GMC Suburban | Owner's Manual - Page 176
Here are some other things to consider asyou approach a hill. Is there a constant incline, or does the hill get sharply steeper in places? Is there good traction on the hillside, or will the surface cause tire slipping? 0 Is there a straight path up or down the hill so you won't have to make - 1994 GMC Suburban | Owner's Manual - Page 177
- 1994 GMC Suburban | Owner's Manual - Page 178
down the hill. Q: Suppose, after stalling,I try to back down the hill and decidejust I can't do it. What should I do? A: Set the parking brake, put your transmission in "P" (Park) (or the manual transmission in first gear),and turn off the engine. Leave the vehicle and go get some help. Exit on - 1994 GMC Suburban | Owner's Manual - Page 179
vehicle by applying the regular brakes. Apply the parking brake. Shift to " P ' (Park) (or toNeutral with the manual transmission) and, while still braking, restart the engine. Shift back to a low gear, release the parking brake, and drive straight down. 0 If the engine won't start, get out and - 1994 GMC Suburban | Owner's Manual - Page 180
not prevent the vehicle from tilting and rolling over. Also, driving across an incline puts more weight on the downhill wheels. This couldcause a downhill slide ora rollover. 0 Surface conditionscan be a problem when you drive across a hill. Loose gravel,muddy spots, oreven wet grass can cause your - 1994 GMC Suburban | Owner's Manual - Page 181
you (and yo1 passengers) get out on the uphill side, even if the door there is harder to open. If you get out on the downhill side and has an effect on steering, accelerating,and braking. You may want to reduce the air pressure in your tires slightly when driving on sand. This will improve - 1994 GMC Suburban | Owner's Manual - Page 182
braking can cause you to slide out of control. Driving In Water Light rain causes no special off-road driving problems. engine. When you go through water, remember that when your brakes get wet, it may take you longer to stop. If you have a diesel engine, see"Driving Through Water (Diesel Engines - 1994 GMC Suburban | Owner's Manual - Page 183
braking. Check the body structure, steering, suspension, wheels, tires, and exhaust system for damage. Also, check the fuel lines and cooling system for any leakage. Your vehicle will require more frequent service on higher speed roads. Your headlights can light up only so much road ahead. In remote - 1994 GMC Suburban | Owner's Manual - Page 184
as your headlights should be checked regularly for proper aim, so should your eyes beexamined regularly. Some drivers suffer from night blindness - the inability to see in dim light - and aren't even aware of it. Driving in the Rain Rain and wet roads can mean driving trouble. On a wet road you - 1994 GMC Suburban | Owner's Manual - Page 185
strips of rubber start to separate from the inserts. Driving too fast through large water puddles or even going through some car washes can cause problems,too. The water may affect your brakes. Try to avoid puddles. But if you can't, try to slow down before you hit them. 4-25 - 1994 GMC Suburban | Owner's Manual - Page 186
Rainy Weather Tips Turn on your low-beam headlights - not just your parking lights - to help make you more visible to others. Besides slowing down, allow depth. (See "Tires" in the Index.) City Driving One of the biggest problems with city streets is the amount of traffic on them. You'll want to - 1994 GMC Suburban | Owner's Manual - Page 187
your trip into an unknown part of the city just as light as a warning signal. A traffic light is there because the corner is busy enough to need it. When a light turns green, and just before you start to move, check to the prevailing speed. Switch on your turn signal, check your mirrors and glance - 1994 GMC Suburban | Owner's Manual - Page 188
clean inside and outside? Wiper Blades: Are they in good shape? Fuel, Engine Oil, Other Fluids: Have you checked all levels'? 0 Lights: Are they all working? Are the lenses clean? Tires: They are vitally important to a safe, trouble-free trip. Is the tread good enough for long-distance driving? Are - 1994 GMC Suburban | Owner's Manual - Page 189
with a comfortably cool interior. 0 Keep your eyes moving. Scan the road ahead and to the sides. Check your mirrors and your instruments frequently. If you get sleepy, pull off the road into a rest, service, or parking area and take a nap, get some exercise, orboth. For safety, treat drowsiness on - 1994 GMC Suburban | Owner's Manual - Page 190
0 Keep your vehicle in good shape. Check all fluid levels and also the brakes, tires, cooling system and transmission. These parts can work hard on mountain roads. Know how to go down hills. The most important thing to know is this: let your engine do some of the slowing down. Shift to a lower gear - 1994 GMC Suburban | Owner's Manual - Page 191
0 Have your vehicle in good shape for winter. Be sure your engine coolant mix is correct. You may want to put winter emergency supplies in your . And, if you will be driving under severe conditions,include a small bag of sand, a pieceof old carpet or a coupleof burlap bags to help provide traction. - 1994 GMC Suburban | Owner's Manual - Page 192
on. But wet ice can be even more trouble because it may offer the least traction of all and sand crews can get there. Whatever the condition - smooth ice, packed, blowing or loosesnow brakes improve your ability to make a hard stop on a slippery road. Even though you have an anti-lock braking system - 1994 GMC Suburban | Owner's Manual - Page 193
flashers.Tie a red cloth toyour vehicle to alert police that you've been stopped by the snow. Put on extra clothing or wrap a blanketaround body you. If you have no blankets or extra clothing, make insulators from newspapers, burlapbags, rags, floormats -anything you can wrap around yourself or - 1994 GMC Suburban | Owner's Manual - Page 194
in "P"(Park) while using a power winch may damage the transmission. Also, leaving automatic or manual a transmission in gear while using an power winch may damage the transmission. Use the regular brakes, set the parking brake, or block the wheels to keep your vehicle from rolling. 4-34 - 1994 GMC Suburban | Owner's Manual - Page 195
asyou normally would. When you release the clutch, the power take-off will start. Using a Transfer Case Mounted Power Take-Off (Manual Transmission) I . Set the parking brake. 2. Shift the transfer case into "N" (Neutral). 3. Hold the clutch pedal down. If the vehicle will remain in the same place - 1994 GMC Suburban | Owner's Manual - Page 196
the clutch, the power take-off will start. Using a Transfer Case Mounted Power Take-Off (Automatic Transmission) I . Set the parking brake. 2. Shift the transfer case into "N" (Neutral). 3. Shift the transmission into "N" (Neutral). 4. Engage the power take-off. If you are going to drive the - 1994 GMC Suburban | Owner's Manual - Page 197
vehicle by itself. Trailering means changes in handling, durability, and fuel economy. Successful, safetrailering takes correct equipment,and the first 500 miles (800 km) your- new vehicle is driven. Your engine, axle or other parts could be damaged. Then, during the first500 miles (800 km) that you - 1994 GMC Suburban | Owner's Manual - Page 198
, Customer Assistance Center, 1908 Colonel Sam Drive, Oshawa, Ontario L1 H 8P7. Weight of the Trailer Tongue The tongue load (A) of any trailer is an important weight to measure because it affects the total or gross weight of your vehicle. The gross vehicle weight (GVW) includes the curb weight of - 1994 GMC Suburban | Owner's Manual - Page 199
a V-shaped foot, your bumper could be damaged in sharp turns. Check the distance from the front weight-distributing hitch and sway control of the proper size. This equipment isvery important for proper vehicle loading and good handling when you're driving. Will you have to make any holes in the body - 1994 GMC Suburban | Owner's Manual - Page 200
tap into your vehicle's brake system. Both braking systems won't work well, and you could even lose your brakes altogether. Will the trailer brake parts take 3,000 psi (20 650 kPa) of pressure? If not, the trailer brake system must not be used with your vehicle. 0 If everything checks out this far - 1994 GMC Suburban | Owner's Manual - Page 201
During your trip, check occasionally to be sure that the load is secure, and that the lights and any trailer brakes are still working. Following Distance stay at least twice as farbehind the vehicle aheau as you would when driving your vehicle without a trailer. This can help you avoid - 1994 GMC Suburban | Owner's Manual - Page 202
shoulders, curbs, road lights will check occasionally to be sure the trailer bulbs are still working brakes so much that they would get hot and no longer work well. On a long uphill grade, shift down and reduce your speed to around 45 mph (70 km/h) to reduce the possibility of engine and transmission - 1994 GMC Suburban | Owner's Manual - Page 203
. park your rig on a hill, here's how to do it: But if you ever have to I . Apply your regular brakes, but don't shift into " P ' (Park) yet, or in gear for a manual transmission. 2. Have someone place chocks under the trailer wheels. 3. When the wheel chocks are in place, release the regular - 1994 GMC Suburban | Owner's Manual - Page 204
cooling system, and brake adjustment. Each of these is covered in this manual, and the Index will help you find them quickly. If you're trailering, it's a good idea to review these sections before you start your trip. Check periodically to see that all hitch nuts and bolts are tight. Trailer Light - 1994 GMC Suburban | Owner's Manual - Page 205
A . Here you'll find what to do about some problems that can occur on the road . Hazard Warning Flasher ...Other Warning Devices ...Jump Starting ... . 5-2 . 5-3 . 5-3 . 5-7 5-10 5-24 5-24 TowingYourVehicle ...Engine Overheating ...EngineFanNoise ...If a Tire Goes Flat ... Changing a Flat Tire - 1994 GMC Suburban | Owner's Manual - Page 206
Flashers Your hazard warning flashers let you warn others. They also let police know you have a problem. Your front and rear turn signal lights will flash on and off. But they won't flash if you're braking. Press the button in to make your front and rear turn signals flash on and off - 1994 GMC Suburban | Owner's Manual - Page 207
of the road about 300 feet (100 m) behind your vehicle. Jump Starting If your battery (or batteries) has run down, you may want to use another vehicle and some jumper cables vehicle, even if you have a manual transmission. it And if you have an automatic transmission, won't start that way. 5-3 - 1994 GMC Suburban | Owner's Manual - Page 208
Your Vehicle: 1. Check the other vehicle. It must have a 12-volt battery with a negative ground system. NOTICE: If the other system isn't a 12-volt system with a negative ground, both vehicles can damage& be ~ - - - ~ ~~ - L If you have a diesel engine vehicle with two batteries (or more - 1994 GMC Suburban | Owner's Manual - Page 209
5. Check that the jumper cables don't have loose or missing insulation. If they to negative (-) or a metal engine part. Don't connect (+) to (-) or you'll get a short that would damage the battery and maybe other parts, too. I A CAUTION: Fans or oeher moving engine parts can injure badly. Keep you - 1994 GMC Suburban | Owner's Manual - Page 210
cable to the good battery's negative (-) cable. Don't let theother end touch anything until the next step. The other end of the negative cable doesn't go to the dead battery. It goes to a heavy unpainted metal part of the vehicle with the dead battery. Good Battery (-) Heavy Metal Engine Part 5-6 - 1994 GMC Suburban | Owner's Manual - Page 211
. 11. Try to start the vehicle with the dead battery. If it won't start after a few tries, it probably needs service. Remove Cables in this Order 2 3 1. Heavy Metal Engine Part 2. Good Battery (-) H d 3. Good Battery (+) 4. Dead Battery (+) 12. Remove the cables in reverse order toprevent - 1994 GMC Suburban | Owner's Manual - Page 212
a straight-ahead position, with a clamping device designed for towing service. Do not use the vehicle's steering column lock for t.his. The transmission and transfer case, if you have one, should be in Neutral and the parking brake released. A CAUTION: I A vehicle can fall from a car carrier if - 1994 GMC Suburban | Owner's Manual - Page 213
, don't go more than 35 mph (56 km/h) or farther than 50 miles (80 km) or your transmission will be damaged. If these limits must be exceeded, then the rear wheels have to be supported on a dolly. is If your vehicle has the four-wheel drive optionand the transfer case engaged, a dolly - 1994 GMC Suburban | Owner's Manual - Page 214
Towing From the Rear Engine Overheating You will find a coolant temperature gage o n your vehicle instrument panel. If you have a diesel engine, you will also find a low coolant light on your instrument panel. 5-10 - 1994 GMC Suburban | Owner's Manual - Page 215
If Steam Is Coming From Your Engine NOTICE: If your engine catches fire because you keep driving no with coolant, your vehicle can badly damaged. The costly repairs be would not be covered by your warranty. 5- 11 - 1994 GMC Suburban | Owner's Manual - Page 216
ENGINE AND GET EVERYONE OUT OF THE VEHICLE until it cools down. You may decide not to lift the hood but to get service help right away. Cooling System -Gas Engines When you decide it's safe to lift the hood, here's what you'll see: A. Coolant recovery tank B. Engine fm(s) C. Radiator pressure cap - 1994 GMC Suburban | Owner's Manual - Page 217
hoses, heater hoses, radiator, water pump or somewhere else in the cooling system. 1 NOTICE: Engine damage from running your engine without coolant isn't covered by your warranty. If there seems to be no leak, startthe engine again. Seeif the fan speed increases when idle speed is doubled by - 1994 GMC Suburban | Owner's Manual - Page 218
to the CoolantRecovery Tank If you haven't found a problem yet, but the coolant level isn't at orabove the COLD mark, add a 50/50 mixture of clean water (preferably distilled) and a proper antifreeze at the coolant recovery tank. (See "Engine Coolant" in the Index for more information about the - 1994 GMC Suburban | Owner's Manual - Page 219
When the coolant in the coolant recovery tank is at or above the COLD mark, start your vehicle. If the overheat warning continues, there's one more thing you can try. You can add the proper coolant mix directly to the radiator but be sure the cooling system is cool before you do it. 5-15 - 1994 GMC Suburban | Owner's Manual - Page 220
How to Add Coolant to the Radiator 1. You can remove the radiator pressure cap when the cooling system, including the radiator pressure cap and upper radiator hose, is no longer hot. P : . Turn the pressure cap slowly to the left until it first stops. (Don't press down while turning the pressure - 1994 GMC Suburban | Owner's Manual - Page 221
3. Fill the radiator with the proper mix, up to the base of the filler neck. 4. Then fill the coolant recovery tank to the COLD mark. 5. Put the cap back on the coolant recovery tank, but leave the radiator pressure cap off. 5-17 - 1994 GMC Suburban | Owner's Manual - Page 222
base of the filler neck. 8. Then replace the pressure cap. At any time during this procedure if coolant begins to flow out of the filler neck, reinstall the pressure cap. Be sure the arrows on pressure cap line up like this. Cooling System -Diesel Engines When you decide it's safe to lift the hood - 1994 GMC Suburban | Owner's Manual - Page 223
somewhere else in the cooling system. A CAUTION: Heater and radiator hoses, and otherengine parts, canbe very If hot. Don't touch them. you do, you can be burned. Don't run the engine if there is a leak.If you run the engine, it could loseall coolant. That could cause an engine fire, and you could - 1994 GMC Suburban | Owner's Manual - Page 224
a problem yet, but the coolant level isn't at the COLD mark add a 50/50 mixture of clean water (preferably distilled) and a proper antifreeze at the coolant surge tank, but be sure the cooling system, including the coolant surge tank pressure cap, is cool before you do it. (See "Engine Coolant" in - 1994 GMC Suburban | Owner's Manual - Page 225
In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. use the recommended coolant. So 1. You can remove the coolant surgetank pressure cap when the cooling system, includingthe coolant surgetank pressure capand upper radiator hose,is no longer hot. 5-21 - 1994 GMC Suburban | Owner's Manual - Page 226
wait for that to stop. A hiss means there is still some pressure left. 2. Then keep turning the cap, but now push down as you turn it. Remove the pressure cap. 3. Open the air bleed valve located on the thermostat housing. 4. Fill the coolant surge tank with the propermix, up to the COLD mark. I - 1994 GMC Suburban | Owner's Manual - Page 227
While filling the surge tank, watch to see if coolant begins to stream out the air bleed valve. When coolant begins to stream out, close the valve. 5-23 - 1994 GMC Suburban | Owner's Manual - Page 228
air to cool the engine. In most every day driving conditionsthe fan is spinning slower and clutch is not fully engaged. This improves fuel economy transmission slipping ormaking extra shifts. It is merely the cooling system noisy, but you can still steer. Gently brake to a stop, well off the road if - 1994 GMC Suburban | Owner's Manual - Page 229
Changing a Flat Tire If a tire goes flat, avoid further tire wheel damage by driving slowly to a and level place.Turn on your hazard warning flashers. L Blocked Tire The equipment you'll need is located in the cargo area. You'll also find rear your spare tire there. 5 -25 - 1994 GMC Suburban | Owner's Manual - Page 230
Spare Tire Your spare tire is mounted on the driver side inside cargo area wall, at the rear of the vehicle First open the tire cover, if y o u have one. Turn the wing nut to the left and takc it, and the adapter, off the bolt. Take the tire o u t of the vehicle and remove the tire cover. Jack and - 1994 GMC Suburban | Owner's Manual - Page 231
To take the jack out, turn the wing nut to the leftand take itand the retainer off. Take the jack and storage box out and then take the tools out of the box. Your vehicle may have a pairof emergency gloves secured to the jack.You can use them when changing the tire, or during other emergency - 1994 GMC Suburban | Owner's Manual - Page 232
emergency situations. Remember to replace them with the jack, so you will have them handy if needed later. Jacking Tool Storage ~ All Models 1 . Socket 2. Jack Handle 3. Ratchet 4. Jacking Tool Storage Box 5 . Jack - 1994 GMC Suburban | Owner's Manual - Page 233
Jack Storage- Utility Models 1. Retainer 2. Nut 3. Jack - Secure Jack in Vehicle as Shown 4. Jack StorageBox 5. Bracket. Jack Storage- Wagon Models 1. Retainer 4. Jack Storage Box 2. Nut 5. Bracket. 3. Jack - Secure Jack in Vehicle as Shown 5-29 - 1994 GMC Suburban | Owner's Manual - Page 234
Start with the jack, the jack handle and the ratchet. If the flat tire is on the rear of the vehicle, you'll need the jack handle extensions a1so. Attach the jack handle (and jack handle extensions, if needed) to the jack. UP Marking DOWN Marking The ratchet has an UP and a DOWN marking. 5-30 - 1994 GMC Suburban | Owner's Manual - Page 235
.. With the UP marking on the ratchet facing you, rotate the ratchet to the right. " . ,. ,:m j . That will lift the jack head a little. Before raising the vehicle, do the following things. Put your spare tire near the flat tire. Remove the wheel trim. If there is a wheel cover, pry along the - 1994 GMC Suburban | Owner's Manual - Page 236
facing you, to unscrew and take them off. Then take the hub cap off. If the wheel has a trim ring, remove it by using the flat end of the wheel wrench. If the wheel has a smooth center piccc or a center piece with recessed nuts, place the flat end of the wheel wrench in - 1994 GMC Suburban | Owner's Manual - Page 237
jack,you could bebadly injured or killed. Never get under vehicle when it supported onlyby a jack. a is NOTICE: Raising damage Be sure raising your vehicle to the right. Make sure the UP marking faces you. Use the jack handle extentions if the flat is on the rear of the vehicle. Raise the vehicle - 1994 GMC Suburban | Owner's Manual - Page 238
Remove all the wheel nuts and take off the flat tire. 1 Remove any rust or dirt from the wheel bolts, mounting surfaces and spare wheel. Place the spare Rust or dirt on the wheel, or on the partsto which it is fastened, can make the wheel nuts become looseafter a time. The wheel could comeoff and - 1994 GMC Suburban | Owner's Manual - Page 239
A CAUTION: Never use oil or grease on studs or nuts. If you do, the nuts might come loose. Your wheel could fall causing a serious off, accident. Replace the wheel nuts with the rounded end of the nuts toward the wheel. Tighten each wheel nut by hand until the wheel is held against the hub. Front - 1994 GMC Suburban | Owner's Manual - Page 240
a torque wrench to the propertorque. For proper torque, see "Wheel Nut Torque" in the Index. Put the wheel trim back on. For vehicles with plastic nut caps, tighten the caps until they are fingertight, then tighten them an additional one-half turn with the ratchet. Remove any wheel blocks. Kemember - 1994 GMC Suburban | Owner's Manual - Page 241
jack onto the box. Be sure the jack points in the right direction as shown for your model. See the jack and jack tools storage diagrams earlier in this section.Secure the emergency gloves, if your vehicle has them, to the jack using the provided strap. Slide the retainer overthe bolt - 1994 GMC Suburban | Owner's Manual - Page 242
Storing the Tire Be sure the J-bolt is hooked properly for your model or tire size as shown. Tire Storage-Wagon Model If you have a wagon model, use these locations. 1. I-Bolt 2. J-Bolt 3. Carrier 4. Spare Tire 5 . Adapter 6. Nut 7. Cover 8. Use Lower Adapter Hole for 8-Lug Rim Only 5-38 - 1994 GMC Suburban | Owner's Manual - Page 243
Tire 5. Nut 6. Cover 7. Pins 8. J-Bolt 9. Use Upper Hole and Pin for LT265 Tire or Lower Hole and Pin For LT225/245 Tires Put the cover back on the tire if your vehicle has one. Put the tire into the vehicle, over the bolt. Slide the adapter onto the bolt in the - 1994 GMC Suburban | Owner's Manual - Page 244
parts your vehicle as well as of the tires. If you spin the wheels too fast while shifting your transmission back and forth, you can destroy your transmission the accelerator pedal while you shift, and press lightly on the accelerator pedal when the transmission is in gear. If that doesn't get you - 1994 GMC Suburban | Owner's Manual - Page 245
. Never pull on the hooks at a sideways angle. The hooks could break off and you or others could be injured from the chain cable snapping back. or 5-41 - 1994 GMC Suburban | Owner's Manual - Page 246
NOTICE: Never use the recovery hooks to tow the vehicle. vehicle Your could be damaged and it would not be covered warranty. by 5-42 - 1994 GMC Suburban | Owner's Manual - Page 247
care. Service ...Fuel (Gasoline Engines) ...Diesel Fuel Requirements and Fuel System ...Checking Things Under the Hood ...HoodRelease ...Cleaning Your Diesel Engine ...Engine Oil (Except Diesel) ...Engine Oil (Diesel Engines) ...Aircleaner ...Automatic Transmission Fluid ...Manual Transmission Fluid - 1994 GMC Suburban | Owner's Manual - Page 248
Brake System Parts ...646 Brake Master Cylinder Other Maintenance Items ...Lubrication ...Battery ...6-46 6-48 649 Bulb Replacement ...6-50 Fuses and Circuit Breakers ...6-56 Exhaust System ...Vehicle Identification Number ...Service Parts Identification Label ...Specification Charts ... 6-2 - 1994 GMC Suburban | Owner's Manual - Page 249
get genuine GM parts and GM-trained and supported service people. We hope you'll want to keep your GM vehicle all GM. Genuine GM parts have one of these marks: Doing Your Own Service Work If you want to do some of your own service work, you'll want to get the proper GM Service Manual. It tells you - 1994 GMC Suburban | Owner's Manual - Page 250
manual, "Scheduled Maintenance Services", explainsthe maintenance your new vehicle needs, and when it should be done. It also has a form thatyou can use to record the maintenance work done on your vehicle. Be sure to read this information. Fuel (Gasoline Engine] If your vehicle has a diesel engine - 1994 GMC Suburban | Owner's Manual - Page 251
help prevent will deposits from forming your engine and fuel system. That helpskeep your in engine in tune your emission controlsystem working properly. It's good and for your vehicle, and you'll bedoing your part for cleaner air. Many gasolines arenow blended with oxygenates. GeneralMotors - 1994 GMC Suburban | Owner's Manual - Page 252
produce a power and fuel economy loss. The use of number 1-D diesel fuel in warm or hot climates may result in stalling, poor starting when the engine is hot and may damage the fuel injection system. Diesel fuel may foam when you fill your tank. This can cause the automatic pump nozzle to shut off - 1994 GMC Suburban | Owner's Manual - Page 253
briefly when you start your engine, as a check. If it doesn't, have it fixed so it will be there to let you know if you ever do get water in your fuel. If the light comes on at any other time, use this chart. "WATER INFUEL" LIGHT CHART Problem Light comes on intermittently. Light stays on: 1. At - 1994 GMC Suburban | Owner's Manual - Page 254
parking brake. 2. Remove the fueltank cap. 3. Place afuel-resistant container under the filterdrain hose. 4. With the engine Engine Oil (Diesel Engines)" part, later in this section. 8. Install the fueltank cap. If the WATER IN FUEL light comes on again after driving a short distance or the engine - 1994 GMC Suburban | Owner's Manual - Page 255
technician. Improper purging can damage your fuel system. ~~~~~~ ~~ ~ Running Out of Fuel (Diesel Engines) If the engine stalls and you think that you've run With the air bleed valve open, turn your ignition key to "Start" for 10 to 15 seconds to crank (but not start) your engine. Wait one - 1994 GMC Suburban | Owner's Manual - Page 256
system. Then, drain fuel from the filter by opening the air bleed engine parts, and keep matchesor other ignition sourcesaway. 1. Turn off the engine and apply the parking brake. 2. Take off the fuel tank cap. This releases vacuum in the tank. 3. The filter islocated at the rear of the intake - 1994 GMC Suburban | Owner's Manual - Page 257
top of the filterso it faces (is readable from) the front of the vehicle. Push the element in until the mating surfaces touch. 8. With the air bleed valve open, turn your ignition key to START for 10 to 15 seconds. Wait one minute for your starter to cool. Do this until - 1994 GMC Suburban | Owner's Manual - Page 258
cap. IO. Start your engine and let it idle for five minutes. Check your fuel filter and air bleed valve for leaks work well or at all. With continuous use, spark plugs can get fouled, the exhaust system can corrode, and your engine Your Tank The fuel cap is behind a hinged door on the left side - 1994 GMC Suburban | Owner's Manual - Page 259
the cap back on, turn it to the right until you hear a clicking noise. I NOTICE: If you need a new be sure to get the right type.Your dealer cap, can get one for you. If you get the wrong type, it may not or fit have proper venting, and your fuel tank and emissions system - 1994 GMC Suburban | Owner's Manual - Page 260
Checking Things Under theHood Hood Release To open the hood, first pull the handle inside the vehicle. Then go to the frontof the vehicle and pull up on the secondary hood release, located just to the passenger side of the center of the grill. Lift thehood. Your vehicle, if it has air conditioning - 1994 GMC Suburban | Owner's Manual - Page 261
Before closing the hood, be sure all filler caps areon properly. Pull down the hood and close it firmly. Cleaning Your Diesel Engine I NOTICE: If you sprayor pour wateror any other liquid on your engine when it is warm or hot, or when it is running, you could cause serious damageto it. If you ever - 1994 GMC Suburban | Owner's Manual - Page 262
Engine Oil (Except Diesel) It's a good idea to check your engine oilevery time you get fuel. In order to get an accurate reading, the oilmust be warm and vehicle must be on the level ground. Turn off the engine and give the oil a few minutes to drain back into the oil pan. If you don't, the oil - 1994 GMC Suburban | Owner's Manual - Page 263
damaged. be The engine oil filler cap is located on the driver's side engine valve cover. Just fill it enough to put the level somewhere in the proper operating range. Push the dipstick all the way back in when you're through. What Kind of Oil to Use Beginning midyear 1993, oils of the - 1994 GMC Suburban | Owner's Manual - Page 264
You should also use the proper viscosity oil for your vehicle, as shown in the following chart: LIGHT DUTY EMISSIONS -GAS ENGINES RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. HOT - 1994 GMC Suburban | Owner's Manual - Page 265
HEAVY DUTY EMISSIONS -GAS ENGINES RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. HOT WEATHER "F tlOO +EO +60 +40 +20 LOOK FOR ONE - 1994 GMC Suburban | Owner's Manual - Page 266
These letters show American Petroleum Institute (API) levels of quality. 0 SAE 5W-30 -Vehicles with Light Duty Emissions (8500 GVWR or less) OR SAE 10W-30 -Vehicles with Heavy Duty Emissions ( designation, you can cause engine damage not covered by your warranty. GM Goodwrench@ oil (in Canada, GM - 1994 GMC Suburban | Owner's Manual - Page 267
The engine is at low speed most of the time (as in door-to-door 3 months - whichever comes m or first. Light Duty Emissions: If none of them is true . Engine Coolant Heater (Engine Block Heater) An engine coolant heater cleaner. Wash or properly throw away clothing or rags containing used engine oil - 1994 GMC Suburban | Owner's Manual - Page 268
itby taking it to a place that collects used oil. If you havea problem properly disposing of your used oil, ask your dealer, a service station ora local recycling centerfor help. Engine Oil (Diesel Engines) It's a good idea to check your engine oil level every time you get fuel. In order toget an - 1994 GMC Suburban | Owner's Manual - Page 269
. your enginehas so much oil that the If oil level gets above the proper operating range, your engine could be damaged. The engine oil filler cap is located on a filler tube at the front of the engine. Just fill it enough to put the level somewhere in the proper operating range. Push the dipstick - 1994 GMC Suburban | Owner's Manual - Page 270
, CE, CF-4. These letters show American Petroleum Institute (API) levels of quality. NOTICE: If you use oils that don't have these designations, you can cause engine damage which not coveredby your warranty. is 6-24 - 1994 GMC Suburban | Owner's Manual - Page 271
DIESEL ENGINES SELECT THE SAE GRADE OIL BASED O N THE EXPECTED TEMPERATURE RANGE BEFORE NEXT OIL CHANGE HOT WEATHER :F t 100 ;C - +38 +60 - - + 1 6 +32 -- 0 I I SAE 30 0 - - -18 I -20 - - -29 - 1994 GMC Suburban | Owner's Manual - Page 272
good hand cleaner. Wash or properly throw away clothing or rags containing used engine oil. ( bodies of water. Instead, recycle it by taking it to a place that collects used oil. If you have a problem properly disposing of your used oil, ask your dealer, a service station or a local recycling center - 1994 GMC Suburban | Owner's Manual - Page 273
Schedule to determinewhen to replace the air filter. See "Scheduled Maintenance Services" in the Index. I NOTICE: If the air cleaneris off, a backfire can cause a damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the air cleaner in place when you're - 1994 GMC Suburban | Owner's Manual - Page 274
air cleaner filter on a 6.5 liter turbocharged diesel, first remove the rubber elbow. Remember to observe the caution about turbocharger blades on the rubber elbow. Then, unhook the cover retaining clips and push the rear of the cover toward the engine. A utomafic Transmission Fluid When to Check - 1994 GMC Suburban | Owner's Manual - Page 275
some the fluid could come out and fall of on hot engine parts exhaust system, startinga fire. Be sure to get or an accurate reading you check your transmission fluid. if Wait at least 30minutes before checking the transmission fluid level if you have been driving: When outside temperatures areabove - 1994 GMC Suburban | Owner's Manual - Page 276
lower level. The fluid level must be in the COLD area for a cold check or inthe HOT area or cross-hatched area for a hot check. 4. If the fluid level is in the acceptable range, push the dipstick back in all the way; then flip the handle down to lock the dipstick in place. 6-30 - 1994 GMC Suburban | Owner's Manual - Page 277
level is obtained, push the dipstick back in all the way; then flip the handle down to lock the dipstick in place. Manual TransmissionFluid When to Check A good time to have it checked is when the engine oilis changed. However. the fluidin your manual transmission doesn't require changing. How to - 1994 GMC Suburban | Owner's Manual - Page 278
Then, follow these steps: 1. Remove the filler plug. 2. Check that the lubricant level is up to the bottom of the filler plug hole. 3. If the fluid level is good, install the plug and be - 1994 GMC Suburban | Owner's Manual - Page 279
the diaphragm when it's in place in the reservoir. See the instructions on the reservolr cap. Rear Axle When to Check and Change Lubricant Refer to the Maintenance Schedule to determinehow often to check the lubricant and when to change it. See "Scheduled Maintenance Services" in the Index. How to - 1994 GMC Suburban | Owner's Manual - Page 280
this section also apply to four-wheel-drive vehicles. However, they have two additional systems that need lubrication. Transfer Case When to Check Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant. See "Periodic Maintenance Inspections" in the Index. How to - 1994 GMC Suburban | Owner's Manual - Page 281
Recommended Fluids and Lubricants" in the Index. Engine Coolant The following explainsyour cooling system and how to add coolant when it is low. If you have a problem with engine overheating,see "Engine Overheating'' in the Index. The proper coolant foryour vehicle will: 0 Give freezing protection - 1994 GMC Suburban | Owner's Manual - Page 282
can freeze and crack mix the engine, radiator, heater core and other parts. Some conditions,such as air trappedin the cooling system, can affect the coolant level in the radiator. Check the coolant level when the engine is cold and follow the steps under "Adding Coolant" for the proper way to add - 1994 GMC Suburban | Owner's Manual - Page 283
passenger sideat the rear cornerof the engine compartment To Check Coolant When your engine is cold, the coolant level should be at COLD, or a little higher. When your engine is warm, the level should be up to HOT, or a little higher. To Add Coolant If you need more coolant, add the proper mix at - 1994 GMC Suburban | Owner's Manual - Page 284
COLD mark. If this light comes on, it means you're low on engine coolant. To Add Coolant If you need more coolant, add the proper mix ut the surge tank, but only when the engine is cool. Open the bleed valve on the thermostat housing to allow trapped air out of the system. Close the bleed valve - 1994 GMC Suburban | Owner's Manual - Page 285
tube on the radiator filler neck. NOTICE: Your radiator capis a 15 psi (105 kPa) pressure-type cap and must be tightly installed to prevent coolant loss and possible engine damage from overheating. sure the arrows on the cap Be line up with the overflow tube on the radiator filler neck. 6-39 - 1994 GMC Suburban | Owner's Manual - Page 286
until the coolant reaches a preset temperature. When you replace your thermostat, an AC@thermostat is recommended. Power SteeringFluid NOTICE: Always turn the engine before checking or adding power off steering fluid. The power steering pump cap close tothe fan is and other moving parts. 6-40 - 1994 GMC Suburban | Owner's Manual - Page 287
How To Check Power Steering Fluid Unscrew the cap and wipe the dipstick with a clean rag. Replace the cap and completely tighten it. Then remove the cap again and look at the fluid level on the dipstick. I When the engine compartment is hot, the level should be at the FULL mark. When the engine - 1994 GMC Suburban | Owner's Manual - Page 288
Hydro-Boost Brake System (Hydraulic Pump) The power steering pump is also used as the Hydro-boost pump. Refer to "Power Steering System" in thissection when checking fluid levelor adding fluid. Windshield Washer Fluid To Add Open the cap labeled "WASHER FLUID ONLY" Add washer fluid until the bottle - 1994 GMC Suburban | Owner's Manual - Page 289
When new linings are put in, the fluid level goes back up. The other reason is that fluid is leaking out of the brake system. If it is, you should have your brake system fixed, since a leak means that sooner or later your brakes won't work well, or won't work at all. So, it isn't a good idea to "top - 1994 GMC Suburban | Owner's Manual - Page 290
BrakeFluid You can check the brake fluid without taking off the cap. Just look at thewindows on the brake fluid reservoir. The fluid levels should be above "MIN." If they aren't, have your brake system checked to see if there is a leak. After work is done on the brake hydraulic system, make sure - 1994 GMC Suburban | Owner's Manual - Page 291
(except when you are pushing on the brake pedal firmly). NOTICE: Continuing to drive with worn-out brake pads could result in costly brake repair. Some driving conditions or climates cause a brake squeal when the may brakes are first applied or lightly applied. Thisdoes not mean something is wrong - 1994 GMC Suburban | Owner's Manual - Page 292
work well together if the vehicle is to have really good braking. Vehicles we design and test have top-quality GM brake parts in them, as your vehicle does when it is new. When you replace parts of your braking system - for example, when your brake system. When the shock absorbers are serviced, - 1994 GMC Suburban | Owner's Manual - Page 293
now and then have your dealership checkyour air conditioning system to be sure ithas not lost any cooling ability. If you think the system is not working properly, have your dealership check it out as as soon possible. The air conditioning not work when the temperatureis below 40°F will (4°C). 6-47 - 1994 GMC Suburban | Owner's Manual - Page 294
surfaces, such as door checks, door lock bolts, lockstriker plates, dovetail bumper wedges, etc., a thin film of engine oil should beapplied. The seat adjusters and seat track should be lubricated with chassis grease. Door weather strips and rubber hood bumpers should be lightly coated with a rubber - 1994 GMC Suburban | Owner's Manual - Page 295
should be lubricated to keep it working smoothly. Your maintenance schedule will tell you how often to lubricate the handle. See "Recommended Fluids and Lubricants" in the Index for the proper lubricant to use. Baffery Every new GM vehicle has a Delco Freedom@ battery. You never have to add water - 1994 GMC Suburban | Owner's Manual - Page 296
Bulb Replacement Before you replace any bulbs, be sure that all the lights are off and the engine isn't running. Sealed Beam Headlights 1. Remove the four screws from the headlight retainer. 2 . Pull the headlight out and remove the retainer. 3. Unplug and remove the - 1994 GMC Suburban | Owner's Manual - Page 297
andwipe the bulb dry. Composite Headlights 1. Remove the two screws at the top of the radiator support. 2. Pull the headlight lens assembly out. s 1 : - 1994 GMC Suburban | Owner's Manual - Page 298
the new bulb in the socket, gently press in on the bulb and turn it to the right until it is tight. 7. Put the socket back into the light assembly and turn it socket to the right until it locks. 8. Put the parking/turn signal - 1994 GMC Suburban | Owner's Manual - Page 299
. 5. Put the new bulb in the socket,gently press in on the bulb and turn it to the right until itis tight. 6. Put the socket back into the light assembly and turn it socket to the right until it locks. 7. Put the parkinghrn signal lightassembly - 1994 GMC Suburban | Owner's Manual - Page 300
into the socket and push it in until it istight. 5. Put the socket back into the side marker assembly and turn it to the right to tighten it. 6. Replace the parkinghrn signal light assembly and tighten the screws. Roof Marker Lights 1. Remove the screws and lift off the lens. 2. Pull the bulb - 1994 GMC Suburban | Owner's Manual - Page 301
Center High Mount Stoplamp (CHMSL) The individual bulbs in the CHMSL are not replaceable. Seeyour dealer for assistance. Rear Lights 1 . Open the tailgate or rear doors. 2. Remove the two black plastic plugs in the rear light assembly access 3. Remove the two rear light assembly screws inside the - 1994 GMC Suburban | Owner's Manual - Page 302
The headlight wiring is protected by a circuit breaker in the light switch. An electrical overload will cause the lights to flicker on and off, or in some cases to remain off. If this happens, have your headlight wiring checked right away. Windshield Wipers The windshield wiper motor is protected - 1994 GMC Suburban | Owner's Manual - Page 303
by an in-line fuse in the battery feed wire. This fuse is near the junctionblock. See "Trailer Wiring Harness" in the Index for more information. Fuse Block The fuseblock is behind a11 access door at the bottom of the instrument panel, next to the parking brake release lever. You can remove fuses - 1994 GMC Suburban | Owner's Manual - Page 304
to drive your vehicle if you notice: 0 Engine misfiring Loss of performance Other unusual operating conditions Have your engine and exhaust system serviced regularly. Three- Way Catalytic Converter (gas engines) Your vehicle's three-way catalytic converteris designed to reduce the pollutants in - 1994 GMC Suburban | Owner's Manual - Page 305
) Lamp on your instrument panel lets you know when your emission system needs service. The light will come on briefly when you start your engine to let you know that the system is working. If it does not come on when you start your engine, or if it comes on and stays on while you're driving - 1994 GMC Suburban | Owner's Manual - Page 306
spread it out. Using heavier suspension components to getadded durability might not change your weight ratings, Ask your dealer tohelp you load your vehicle the right way. NOTICE: Your warranty does not cover parts or components that fail because of overloading. If you put things inside your - 1994 GMC Suburban | Owner's Manual - Page 307
Weight Rating (GCWR). When you weigh your trailer, be sure to includethe weight of everything you put in it. And, remember to figurethe weight of the people insideas part you spread out the weight of your load the right way, and if you choose the correct hitch and trailer brakes. For more information - 1994 GMC Suburban | Owner's Manual - Page 308
have a tire warranty folder from each of these manufacturers. Inflation - Tire Pressure The Certificatioflire label which is on the rear edge of the driver's door, or on the incomplete vehicle document in the cab, shows the correct inflation pressures for your tires, when they're cold. "Cold" means - 1994 GMC Suburban | Owner's Manual - Page 309
pocket-type gage to check tire pressure. Simply looking at the tires will not tell you the pressure, especially if you have radial tires - which may look properly inflated even if they're underinflated. If your tires have valve caps,be sure to put them back on. They help prevent leaks by keeping out - 1994 GMC Suburban | Owner's Manual - Page 310
To make your tires last longer, have them inspected and rotated at the mileages recommended in the Maintenance Schedule. See "Scheduled Maintenance Services" in the Index. n FRT FRT Use this rotation pattern. If your vehicle has fronttires with different load ratings or tread designs (such - 1994 GMC Suburban | Owner's Manual - Page 311
When It's Time for New Tires TREAD WEAR INDICATORS One way to tell when it's time for new tires is to check the treadwear indicators, which will appear when your tires have only 2/32 inch (1.6 mm) or less of tread remaining. You need a new tire if 0 You - 1994 GMC Suburban | Owner's Manual - Page 312
give proper endurance, handling, speed rating, traction, ride and other things during normal service on your vehicle. to the system developed by the United States United States.) 'Thetreadwear gradeis a comparative rating based on the wear rate of the tire when tested under controlled conditions - 1994 GMC Suburban | Owner's Manual - Page 313
's ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire performance. Warning: The traction grade assignedto this tire is based on braking (straight-ahead) traction tests and does not include cornering(turning) - 1994 GMC Suburban | Owner's Manual - Page 314
with new GM original equipment parts. This way, you will be sure tohave the right wheel, wheel bolts, and wheel nuts for your GM model. NOTICE: The wrong wheel can also cause problems with bearing life, brake cooling, speedometer/odometer calibration, headlight aim, bumper height, vehicle ground - 1994 GMC Suburban | Owner's Manual - Page 315
match or get them on a hot part of the vehicle. Some are dangerous if you breathe their fumes in a closed space. When you use anythingfrom a containerto clean your vehicle, be sure to follow the manufacturer's warnings and instructions. And always open your doors or windows when you're cleaning the - 1994 GMC Suburban | Owner's Manual - Page 316
damage your vehicle, too. NOTICE: Don't use anyof these unless this manual says can. In many you uses, these will damage your vehicle: Laundry on vinyl or leather. Here are some cleaning tips: Always read the instructions on the cleaner label. Clean up stains as soon as you can - before they set - 1994 GMC Suburban | Owner's Manual - Page 317
-Purpose Powdered Cleaner following the light pressure and clean cloths (preferably cheesecloth). Cleaning should start at the outside of the stain, "feathering"toward the center. Keep changing to a clean section of the cloth. When you clean a stain from fabric, immediately dry the area with an air - 1994 GMC Suburban | Owner's Manual - Page 318
to clean your upholstery and trim carpet often to keep it looking new. -642-6 167). Special Cleaning Problems Greasy or Oily Stains Such remains, follow the foam-type instructions described earlier. If an odor lingers If needed, clean lightly with solvent-type cleaner. Combination Stains Such as - 1994 GMC Suburban | Owner's Manual - Page 319
varnishes, solvent-based or abrasive cleaners, furniture polish or shoe polish on leather. 0 Soiled leather should be cleaned immediately. If dirt is allowed to work into finish, it can harm see through the windshield under certain conditions. Care of Safety Belts Keep belts clean and dry. 6-73 - 1994 GMC Suburban | Owner's Manual - Page 320
. Clean the outside of the windshield with GM Windshield Cleaner, Bon-Ami Powder@ (GM Part No. 1050011). The windshield is clean if beads do checked on a regular basis and replaced when worn. Cleaning the Outside Your Vehicle of The paint finish on your vehicle provides beauty, depth of color - 1994 GMC Suburban | Owner's Manual - Page 321
use strong soaps, chemicals, chrome polish, abrasive cleaners or abrasive cleaning brushes on them because you could damage this coating. After rinsing thoroughly, a wax may be applied. NOTICE: If you have aluminum wheels, don't use an automatic vehicle wash that has hard silicon carbide cleaning - 1994 GMC Suburban | Owner's Manual - Page 322
cleaners that are marked safe forpainted surfaces to remove foreign matter. Finish Damage Any stone chips chips and scratches can be repaired with touch-up materials available from your dealer or other service outlets. Larger areas of finish damage can be corrected in your dealer's body system - 1994 GMC Suburban | Owner's Manual - Page 323
1050429 16 02. (0.473L) White Sidewall Tire Cleaner 32 oz. (0.946L) Vinyl Leather Cleaner 16 02. (0.4731) Fabric Cleaner 23 oz. (0.680L) Glass Cleaner 6 Ibs. (2.72 kg) Multi-Purpose Cleans vinyl and cloth Powder Cleaner on door trim, seats, and carpet-also tires and mats. Cleaning of vinyl tops - 1994 GMC Suburban | Owner's Manual - Page 324
the driver's side. You can see itif you look through the windshield from outside your vehicle. The VIN also appears on the Vehicle Certification and Service Partslabels and the certificates of title and registration. 6-78 - 1994 GMC Suburban | Owner's Manual - Page 325
Engine Identification The eighth characterin your VIN is the engine code. Thiscode will help you identify your engine, specifications,and replacement parts. CD CD I- r I- I cv I c3 I _ L -' w II 6-79 - 1994 GMC Suburban | Owner's Manual - Page 326
Service Parts NUMBER EXTERIOR COLORS I It's very helpful if you ever need to order parts. On check with your dealer first. Some electrical equipment can damage your vehicle and the damage wouldn't be covered by your warranty. Someadd-on electrical equipment can keep other components from working - 1994 GMC Suburban | Owner's Manual - Page 327
GVWR and above Duty ?Throttle Body Injection Engine Identification -Diesel Engines Engine Type VIN Code Fuel System Produced By Emissions 6.5L V8 S Turbo Diesel U.S. LD 6.5L V8 F Turbo Diesel U.S. HD Wheel Nut Torque MODEL C 1500 K 1500, C-K 2500 C-K 2500 DESCRIPTION 5 bolts (14mm) 6 bolts - 1994 GMC Suburban | Owner's Manual - Page 328
) 26.5 Quarts (25 Liters) 25 Quarts (23.5 Liters) After refill, the level MUST be checked as outlined under "Engine Cooling System" in Section 5. *All quantities are approximate. Crankcase Capacity ENGINE 5.7L 6.5L 6.5L 7.4L VIN K ST QTY Without Filter* 4 Quarts (3.8 Liters) - QTY With Filter - 1994 GMC Suburban | Owner's Manual - Page 329
*Use AC copper-cored resister type spark plugs Service Replacemenf Parf and FiRer Recommendafions -Diesel Engines Engine VIN Oil Filter Air Cleaner 6.5L S" PF1218 A9 17C TP 1006 RC33 6.5L F* PF1218 A9 17C Fuel Filter Surge Tank Cap *Heavy Duty Emission Engine TP 1006 RC33 Air Conditioning - 1994 GMC Suburban | Owner's Manual - Page 330
Fuse Block I 7.5 AMP I BROWN I I 10 AMP I RED I I 15 AMP I BLUE I 6-84 - 1994 GMC Suburban | Owner's Manual - Page 331
Window Defogger Timer, Aux. Batt. Relay Feed, Safety Belt Buzzer Timer, Cluster Ign. Feed Back-up Lamps, Turn Signals T.C.C., Air Diverter, E.S.C., E.G.R., E.C.M. Ign. R.W.A.L. Brake Switch Throttle Body Injectors A.B.S. Cluster-Speed0 H.V.A.C. 4 WD, Aux. Batt. Relay Dome Lamp, Ctsy. and Glove Box - 1994 GMC Suburban | Owner's Manual - Page 332
/65 65 TRADE NO. Roof Marker Lamp* License Plate Lamp Underhood Lamp Reel Lamp $'Suburban Only 194 2357NA 3057 3057 3156 194 194 232 232 2 4 2 2 2 5 2 1 1 INTERIOR Dome Lamps Reading Lamps Roof Console Lamps Courtesy Lamp Heater or A/C Control Lamp Four Wheel Drive Indicator Four Wheel Drive - 1994 GMC Suburban | Owner's Manual - Page 333
Indicator Directional Signal Indicator Brake Warning Indicator Safety Belt Warning Check Gages Indicator Malfunction Indicator ("Service Engine Soon") Lamp Upshift Indicator Glow Plugs Lamp"':': TRADE NO. 161 74 74 194 I94 74 74 74 74 74 74 74 74 74 74 74 6 Low Coolant Lamp:'::': Water in Fuel - 1994 GMC Suburban | Owner's Manual - Page 334
Notes - 1994 GMC Suburban | Owner's Manual - Page 335
Services ...Scheduled Maintenance Services ...7-4 Selecting Your Vehicle's Maintenance Services ...7-4 Gasoline Engines with Light Diesel Engines ...7-14 Maintenance Schedule I ...7-16 Maintenance Schedule TI ...Explanation of Scheduled Maintenance Services ...7-18 Owner Checks and Services - 1994 GMC Suburban | Owner's Manual - Page 336
If you have any questions on how to keep your vehicle in good condition, see your GM dealer, the place many GM owners choose to have their maintenance work done. Your dealer can be relied upon to use the proper parts and practices. Your Vehicle andthe Environment Proper vehicle maintenance not only - 1994 GMC Suburban | Owner's Manual - Page 337
best and wants you to be happy with it. If you go to your dealer foryour service needs, you'll know that GM-trained and supported servicepeople will perform the work using genuine GM parts. These schedules are forvehicles that: carry passengers and cargo within the recommended limits. You will find - 1994 GMC Suburban | Owner's Manual - Page 338
- Gas Engines Engine Type VIN Fuel System Emissions '"Light Duty Emissions with 8500 GVWR and below or: *"Heavy Duty Emissions with 8501 GVWR and above +Throttle Body Injection Engine Emissions Classification- Diesel Engines Engine Type VIN 6.5L V8 S Turbo Diesel LD Fuel System Emissions - 1994 GMC Suburban | Owner's Manual - Page 339
(1 6 kilometers), and the outside temperatures arebelow freezing. The engine is at low speed most of the time (as in door-to-door delivery, stop-and-go traffic, or commercial use). 0 Schedule I1 ONLY if none of the above conditions aretrue. Schedule I1 is shown by a dot ( 0 ) on the chart. 7-5 - 1994 GMC Suburban | Owner's Manual - Page 340
Tank, Cap and Lines Inspection*$ Engine Accessory Drive (Serpentine) Belt Inspection* Tire and Wheel Rotation** I I I I I Axle Drive Brake Systems Inspection** ~~~~ t t t - * An Emission Control Service ** See "Explanation of Scheduled Maintenance Services" in the Index $ The California Air - 1994 GMC Suburban | Owner's Manual - Page 341
GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS - MAINTENANCESCHEDULE (continued) THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE DONE AFTER 60,000 MILES AT THE SAME INTERVALS. T0402/T0902 7-7 - 1994 GMC Suburban | Owner's Manual - Page 342
GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS - MAINTENANCE SCHEDULEltf * An Emission Control Service ** See "Explanation of Scheduled Maintenance Services" in the Index. $ The California Air Resources Board has determined that the failure to perform this maintenance item will not nullify the - 1994 GMC Suburban | Owner's Manual - Page 343
GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS - MAINTENANCE SCHEDULE l u (continued) THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE DONE AFTER 60,000 MILES AT THE SAME INTERVALS. T0403aTT0903a 7-9 - 1994 GMC Suburban | Owner's Manual - Page 344
SCHEDULEff A * An Emission Control Service ** See "Explanation of Scheduled Maintenance Services" it7 the Index. A Noise Emission Control Service W Applicable only to vehicles sold in the United States To determine the emissions classification of your engine, refer to "Selecting the Proper - 1994 GMC Suburban | Owner's Manual - Page 345
GASOLINE ENGINES WITH HEAVY DUTY EMISSIONS - MAINTENANCESCHEDULE (continued) THE SERVICES SHOWN ON THISCHART UP TO 60,000 MILES (100 000 km) ARE TO BE DONE AFTER 60,000 MILES AT THE SAME INTERVALS. TO405 7-11 - 1994 GMC Suburban | Owner's Manual - Page 346
WITH HEAVY DUTY EMISSIONS - MAINTENANCE SCHEDULE / I f A Noise Emission Control Service 1 Applicable only to vehicles sold in the United States / t To determine the emissions classification of your engine, refer to "Selecting the Proper Maintenance Chart'' in this section. TO406 A * An Emission - 1994 GMC Suburban | Owner's Manual - Page 347
GASOLINE ENGINESW/TH HEAVY DUTY EM/SSIONS - MAINTENANCE SCHEDULE lu (continued) 0 0 0 0 0 0 0 0 0 0 THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE DONE AFTER 60,000 MILES AT THE SAME INTERVALS. TO407 7- 13 - 1994 GMC Suburban | Owner's Manual - Page 348
necessary. * An Emission Control Service ** See "Explanation of Scheduled Maintenance Services" in this section. A A Noise Emission Control Service H Applicable only to vehicles sold in the United States t This maintenance scheduleapplies to all diesel engines available. 10408/T0908 7- 14 - 1994 GMC Suburban | Owner's Manual - Page 349
DIESEL ENGINES- MAINTENANCE SCHEDULEtI (continued) THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE DONE AFTER 60,000 MILES AT THE SAME INTERVALS. T0409rT0909 7-15 - 1994 GMC Suburban | Owner's Manual - Page 350
or 5 Air Cleaner Filter Replacement* 6 Front Wheel Bearing Repack 7 Transmission Service** 8 CDRV System Inspection* Fuel Filter Replacement* 9 12 EGR System Inspection* 17 Engine Accessory Drive (Serpentine) Belt Inspection* 19 Shields and Underhood Insulation InspectionAH 20 Air Intake System - 1994 GMC Suburban | Owner's Manual - Page 351
DIESEL ENGINES - MAINTENANCE SCHEDULElw (continued) - 1994 GMC Suburban | Owner's Manual - Page 352
, be sure to check all the vehicle fluid levels at this time. 3. CLUTCH FORK BALL STUD LUBRICATION (5-SPEED LOW ) - Not MANUAL TRANSMISSION WITH DEEP applicable to utility or wagon models. 4. COOLING SYSTEM SERVICE*? Drain, flush and refill system with new coolant. See"Engine Coolant" in the Index - 1994 GMC Suburban | Owner's Manual - Page 353
see "Automatic Transmission Fluid" in the Index for more information. Manual Transmission-Transmission fluid does not require periodic changing. 8. CDRV SYSTEM INSPECTION* - Check the Crankcase Depression Regulator Valve System for any worn, plugged or collapsed hoses. Have the system checked as - 1994 GMC Suburban | Owner's Manual - Page 354
leaks.Remove fuel cap, inspect gasket for an even filler neck imprint, and any damage.Replace parts as needed. 16. THERMOSTATICALLY CONTROLLED AIR CLEANER INSPECTION*A - (If so equipped.) Inspect all hoses and ducts for proper hook-up. Be sure the valve works properly. 17. SINGLE ENGINE ACCESSORY - 1994 GMC Suburban | Owner's Manual - Page 355
to keep the vehicle from rolling. 24. DRIVE AXLE SERVICE? Chec.k readfront axle fluid level and add as needed. Check constant velocity joints and axle seals for leaking. 0 Locking differential - Drain fluid at first oil change and refill. Check fluid level and add as needed at subsequent oil - 1994 GMC Suburban | Owner's Manual - Page 356
, leaks, cracks, chafing, etc. Check the parking brake adjust, and the fluid level in the master cylinder. A low fluid level can indicate worn disc brake pads which may need to be serviced. When the wheels are removed for rotation, inspect disc brake pads for wear and rotors for surface condition - 1994 GMC Suburban | Owner's Manual - Page 357
the vehicle facing downhill. Keeping your foot on the regular brake, set the manual parking brake. To check the parking brake: With the engine running and the transmission in "N" (Neutral), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking - 1994 GMC Suburban | Owner's Manual - Page 358
and Shoulder Belts Condition and Operation Inspect belt system, including webbing, buckles, latch plates, retractors, guide loops and anchors. Have a belt assembly replaced if the webbing has been cut or otherwise damaged. Body Lubrication Service Lubricate all body door hinges with engine oil. Also - 1994 GMC Suburban | Owner's Manual - Page 359
vehicle's engine, see "Engine Oil" in the Index. Engine Oil -Diesel Engines APT service CF-4/ brake fluid (GM Part No. 1052535 or equivalent DOT-3 brake fluid). @ Engine Coolant Hydraulic ClutchSystem Hydraulic Brake Systems Parking Brake Cables Power Steering System Chassis Lubricant (GM Part - 1994 GMC Suburban | Owner's Manual - Page 360
of NLGI Grade 2, Category LB or GC-LB. Engine Oil (GM Part No. 1050109 or equivalent). Front Wheel Bearings Propeller Shaft Spline/Universal Joint Automatic Transmission Shift Linkage,FloorShift Linkage, Hood and Door Hinges, Body Door Hinge Pins, Tailgate Hinge and Linkage, Folding Seat - 1994 GMC Suburban | Owner's Manual - Page 361
USAGE Key Lock Cylinders FLUIDLUBRICANT Engine Oil (GM Part No. I050 109 or equivalent) or a synthetic light weight engine oil (SAE 5W-30). Chassis Lubrication Chassis Lubricant (GM Part No. 12346003 or equivalent)or lubricant meeting requirements of NLGI Grade 2, Category LB or GC-LB. - 1994 GMC Suburban | Owner's Manual - Page 362
Scheduled Maintenance Services is performed, record the date, odometer reading, services performed (list item numbers) and who performed the services in the appropriate column. In addition, retain copies of your receipts. It is suggested that receipts be kept with your Owner's Manual. Maintenance - 1994 GMC Suburban | Owner's Manual - Page 363
It is important for you or a service station attendant to perform these under-hood checks at each fuel fill. 0 0 Check the engine oil level and add if necessary. Check the engine coolant level in the recovery bottle and add if necessary. Check the windshield washer fluid level and add if necessary - 1994 GMC Suburban | Owner's Manual - Page 364
Freedom battery never needs to have water added. See Page 6-49. \Cooling System 9 Fuel For gasoline engines, use 87 octane (or higher) unleaded gasoline on Iy. For diesel engines, 1 use at least D diesel fuel. For fuel tank capacity See Page 6-82. Check and add coolant only at the coolant recovery - 1994 GMC Suburban | Owner's Manual - Page 365
AUTO LINE - Alternative Dispute Resolution Program ...8-3 ...8-4 Reporting Safety Defects To the Canadian Government ...8-5 Reporting Safety Defects To General Motors ...8-5 Roadside Assistance ...8-6 Courtesy Transportation ...8-6 Service Publications ...8-7 Reporting Safety Defects To the United - 1994 GMC Suburban | Owner's Manual - Page 366
that level. If the matter has already been reviewed with the Sales, Service, or Parts Manager, contact the owner of the dealership GMC Truck Consumer Relations Manager by calling 1-800-GMC-TRUCK ( 1-800-462-8782, Customer Assistance prompt.) In Canada, contact GM of Canada Customer Assistance Center - 1994 GMC Suburban | Owner's Manual - Page 367
Center. Any hearing or speech impaired customer who has access to a TDD ora conventional teletypewriter (TTY) can communicate with GMC Truck by dialing: In the United States, 1-800-GMC-TKTD (1-800-462-8583). (TDD users in Canada can dial 1-800-263-3830.) GM Participation inBBB AUTO LINE Alternative - 1994 GMC Suburban | Owner's Manual - Page 368
100 or the GMC Truck Customer Assistance Center at 1-800-GMC-TRUCK ( 1-800-462-8782). REPORTING SAFETY DEFECTSTO THE UNITED STATES GOVERNMENT T you involved in individual problems between you, your dealer, or General Motors. To contact NHTSA, you may either call the Auto Safety Hotline toll-free - 1994 GMC Suburban | Owner's Manual - Page 369
TRUCK (1-800-462-8782) ,or write: GMC Truck Consumer Relations 3 I E. Judson Street 1607-04 Pontiac, MI 48342-2230 In Canada, please call us at 1-800-263-3777 (French). Or, write: General Motors of Canada Limited Customer Assistance Center 1908 Colonel Sam Drive Oshawa, Ontario Ll H 8P7 (English) or - 1994 GMC Suburban | Owner's Manual - Page 370
courtesy transportation for customers when obtaining warranty service. The Courtesy Transportation Program is available toretail purchasers of Commitment Plus eligible 1994 GMC light duty trucks. This program is offered in conjunction with the 36 month/36,000 mile BUMPER TO BUMPER New VehicleLimited - 1994 GMC Suburban | Owner's Manual - Page 371
Others describe a quicker way to fix your vehicle. They can help a technician service your vehicle better. Most bulletins apply to conditions affecting a small number of cars or trucks. Your GMC Truck dealer or aqualified technician may have to determine if a specificbulletin applies toyour vehicle - 1994 GMC Suburban | Owner's Manual - Page 372
GMC Truck in a model year. PSP's covering all models of GMC light issue. Check the instructions, and know-how to do ajob quickly and safely. GMC Truck reserves the right to change these procedures without notice after November. 1992. GMC Truck Service Publications You can get these Product Service - 1994 GMC Suburban | Owner's Manual - Page 373
Notes 8-9 - 1994 GMC Suburban | Owner's Manual - Page 374
20.00NATP-9431K $1 $1NATP-9457K 1994 G Van 1994 P3 Models & P/G Models NATP-9432K 20.00 $1 1994 Safari NATP-9430K $1 20.00 1994 S/T Models 20.00 NATP-9429K $1 Includes: Service Manual, Repair Unit Manual, Driveability, Emissions, andElectricalDiagnosisManual. PRODUCTSERVICEPUBLICATIONS FormNumber - 1994 GMC Suburban | Owner's Manual - Page 375
r 0 .n .CI C L. 0 u) n aJ ... 3 Z W L 5 u ) t 0 I - .. - 1994 GMC Suburban | Owner's Manual - Page 376
Index Aircleaner ...6-27 Air Conditioning ...35 3 68 . ., Rear(WagonMode1s) ...3-8 6-83 Refrigerant Capacity ...System Controls ...3-8 AntenmFixedMast ...3-22 8-3 Alternative Dispute Resolution Program ...Antilock Brakes (See "Brakes") System Warning Light 2-68 Appearancecare ...6-69 Materials ...6- - 1994 GMC Suburban | Owner's Manual - Page 377
(see "Audio Systems" ) Catalytic Converter ...6-58 CertificatiodTire Problems ...6-72 Vinyl or Leather ...6-73 WheelsandTires ...6-75 Windshield ...6-74 3-19 Clock ...3-16. Comfort Controls ...3-2 Console 2-57 Floor ...2-59 Overhead ...ConvenienceNet ...2-78 Coolant (See "Engine") Cooling System - 1994 GMC Suburban | Owner's Manual - Page 378
Driving (continued) Braking ...4-5 Control of A Vehicle ...4-4 4-2 System Add-on Equipment ...6-80 Engine Adding Coolant ...5.14,5.20, 6.37 Aircleaner ...6-27 Block Heater ...2.19.3.5,21 6. Computer Command Control System ...6-58 Coolant ...6-35 Coolant Temperature Gage ...2-75 Cooling System - 1994 GMC Suburban | Owner's Manual - Page 379
Automatic Transmission ...6-28 Brake ...6-44 Capacities ...6-82 Coolant ...5-11 FrontAxle ...6-35 Hydraulicclutch ...6-33 LeakCheck ...6-48 Manual Transmission ...6-12 Foreign Countries ...6-12 Gage ...2-74 Gasolines for Cleaner Air ...6-5 TankCapacity ...6-82 Fuses and Circuit Breakers ...6-56,6-85 - 1994 GMC Suburban | Owner's Manual - Page 380
Hazard Warning Flashers ...5-2 HeadRestraints ...1-5 Headlights ...2-47. 6-50 Composite ...6-51 High Beam Indicator Light ...2-73 High-LowBe am ...2-73 Reminder ...2-48 Replacement ...6-50, 6-86 SealedBeam ...6-50 Heating System (with A/C) ...3-5 Rear(WagonMode1s) ...3-8 Rear Window Defogger ...3-11 - 1994 GMC Suburban | Owner's Manual - Page 381
L Lights ...2-47 Brake System Warning ...2-67 Bulb Replacement ...6-86 Charging System Light ...2-70 2-71 CheckGagesLight ...Dome ...2-49 Front Parking/Turn Signal ...6-52 Headlights (See "Headlights") Indicator ...2-66 Operation ...2-37 Reading ...2-49 Service Engine Soon ...2.71, 6-59 Rear ...6-55 - 1994 GMC Suburban | Owner's Manual - Page 382
17, 6-24 WhentoAdd ...6-16,6-23 Whentochange ...6-21,6-26 Owner Checks and Services ...7-22 P Parking 2-27 Over Things That Burn ...Torque Lock (Automatic Transmission) ...2-27.4-52 Your Vehicle (Manual Transmission) ...2-30 ParkingBrake ...2-26 Passing Other Vehicles ...4-9 Periodic Maintenance - 1994 GMC Suburban | Owner's Manual - Page 383
...1-5 Secondary Air Injection (AIR System) ...6-59 Service Do-It-Yourself ...6-3 Parts Identification Label ...6-80 Publications ...8-7 Replacement Parts and Filter Recommendations ...6-83 Service Engine Soon Light ...2-71'6-59 Service Station Checks ...7-29 Shift Indicator Light ...2-25 - 1994 GMC Suburban | Owner's Manual - Page 384
...6-69 5-25 ChangingaFlat ...5-24 Flat ...Hub Caps and Wheel Nut Caps ...5-32 Inspection and Rotation ...6-64 Loading Package ...6-61 Transfer Case ...2-33,6-34 Transmission Automatic ...2-14 Five-SpeedManual ...2-14 Fluid ...vii Ventilation System ...3-2 AirVents ...3-3 Tips ...3-2 Voltmeter ...2-77 - 1994 GMC Suburban | Owner's Manual - Page 385
. Gages and Indicators ...2-66 5-3 (Also See "Lights..)Devices. Other ...Wheels Alignment and Tire Balance ...6-67 Aluminum ...6-75 Hub CapsNheel Nut Caps ...5-22 NutTorque ...6-47. 6-81 Replacement ...6-68 UsedReplacement ...6-68 2-35 Windows ...WindshieldWasher ...2-41 2-54 Rearwasher ...2-41 - 1994 GMC Suburban | Owner's Manual - Page 386
X-9409 WE SUPPORT VOLUNTARY TECHNICIAN CERTlFlCATlONTHROUGH National institute for AUTOMOTIVE SERVICE EXCELLENCE Keepwithvehicle at all times. Contains Important Operating,Safety, andMaintenanc.eInstructions. THE STRENGTH OF EXPERIENCE. ""'I TRUCK